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Cheap flights from St. Louis (STL) to Sofia (SOF) from $1,047

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — SOF
Jun 7 — Jun 141
From?
To?
Fri 6/7
Fri 6/14
1 adult, Economy
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The best prices from Lambert-St Louis to Sofia are usually found in February or November, booked 3 days in advance, depart on a Tuesday or Thursday and return on a Friday

Cheap flight deals from St. Louis to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Sofia (SOF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 2, 2024.

Popular in

December

Cheapest in

February

Average price

$1,515

Round-trip from

$660
High demand for flights, 29% potential price rise
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Best time to find cheap flights, 36% potential price drop
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Average for round-trip flights in June 2024
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From Lambert-St Louis to Sofia
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What is the cheapest day to fly round-trip from St. Louis to Sofia?

It’s generally more expensive to depart on a Monday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

What is the cheapest month to fly from St. Louis to Sofia?

The best pricing can be found in the month of February. Prices to Sofia from St. Louis average $1,104. You can even find prices in February for less than $1,104, as users have found deals to Sofia from as low as $669. The month of December appears to be one of the more expensive times to travel to Sofia from St. Louis. Flying in the targeted month can save you up to 40%.

What is the cheapest time of day to fly from STL to SOF?

When flying from St. Louis to Sofia, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 19% versus a flight at noon.

Cheap United Airlines flights from St. Louis to Sofia

Explore cheap flight options specifically provided by United Airlines for the route between St. Louis and Sofia. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
Take a peek at the cheapest United Airlines flights we've detected traveling from St. Louis to Sofia. Come back soon if you're not finding the exact deal you're looking for.
Fri 7/510:19 amSTL - SOF
2 stops17h 51mUnited Airlines
Fri 7/196:30 amSOF - STL
2 stops17h 10mUnited Airlines
Deal found 6/2$1,047
Mon 7/2210:19 amSTL - SOF
2 stops17h 51mUnited Airlines
Wed 8/76:00 amSOF - STL
2 stops24h 37mUnited Airlines
Deal found 5/31$1,218
Mon 7/221:04 pmSTL - SOF
2 stops15h 06mUnited Airlines
Thu 8/16:30 amSOF - STL
2 stops22h 01mUnited Airlines
Deal found 5/31$1,252
Sat 7/2010:19 amSTL - SOF
2 stops17h 51mUnited Airlines
Wed 7/316:00 amSOF - STL
2 stops17h 40mUnited Airlines
Deal found 5/31$1,268
Thu 7/188:05 amSTL - SOF
2 stops30h 55mUnited Airlines
Sun 7/286:30 amSOF - STL
2 stops17h 10mUnited Airlines
Deal found 6/1$1,512
Thu 7/186:30 amSTL - SOF
2 stops32h 30mUnited Airlines
Tue 7/302:05 pmSOF - STL
3 stops40h 12mUnited Airlines
Deal found 6/1$1,633

Cheap Lufthansa flights from St. Louis to Sofia

Explore cheap flight options specifically provided by Lufthansa for the route between St. Louis and Sofia. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
To aid your search, here are some of the cheapest Lufthansa flights we've found from St. Louis to Sofia. Ensure the flight price, dates, time, and airline match your criteria before you book.
Mon 7/225:30 pmSTL - SOF
2 stops21h 05mLufthansa
Fri 8/26:00 amSOF - STL
2 stops17h 40mLufthansa
Deal found 5/31$1,128
Fri 7/53:25 pmSTL - SOF
1 stop13h 55mLufthansa
Fri 7/196:30 amSOF - STL
2 stops17h 10mLufthansa
Deal found 6/2$1,178
Tue 7/165:30 pmSTL - SOF
2 stops17h 15mLufthansa
Mon 7/296:45 pmSOF - STL
2 stops28h 55mLufthansa
Deal found 6/1$1,203
Tue 7/235:30 pmSTL - SOF
2 stops21h 30mLufthansa
Sun 8/46:30 amSOF - STL
2 stops17h 10mLufthansa
Deal found 6/1$1,239
Thu 7/181:10 pmSTL - SOF
2 stops15h 00mLufthansa
Tue 7/306:45 pmSOF - STL
2 stops28h 55mLufthansa
Deal found 6/1$1,250
Tue 7/165:30 pmSTL - SOF
2 stops17h 15mLufthansa
Tue 7/306:45 pmSOF - STL
2 stops28h 55mLufthansa
Deal found 6/1$1,360
Mon 7/225:30 pmSTL - SOF
2 stops21h 30mLufthansa
Sat 8/36:30 amSOF - STL
2 stops17h 10mLufthansa
Deal found 6/1$1,361
Wed 7/175:30 pmSTL - SOF
2 stops17h 15mLufthansa
Tue 7/306:30 amSOF - STL
2 stops17h 10mLufthansa
Deal found 6/1$1,368
Sat 7/205:30 pmSTL - SOF
2 stops21h 30mLufthansa
Tue 7/306:45 pmSOF - STL
2 stops28h 55mLufthansa
Deal found 6/1$1,370

St. Louis to Sofia 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Sofia in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
These are some of the most attractive deals on flights from St. Louis to Sofia in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Fri 7/510:19 amSTL - SOF
2 stops17h 51mUnited Airlines
Fri 7/196:30 amSOF - STL
2 stops17h 10mUnited Airlines
Deal found 6/2$1,047
Mon 7/225:30 pmSTL - SOF
2 stops21h 05mLufthansa
Fri 8/26:00 amSOF - STL
2 stops17h 40mLufthansa
Deal found 5/31$1,128
Fri 7/53:25 pmSTL - SOF
1 stop13h 55mLufthansa
Fri 7/196:30 amSOF - STL
2 stops17h 10mLufthansa
Deal found 6/2$1,178
Tue 7/165:30 pmSTL - SOF
2 stops17h 15mLufthansa
Mon 7/296:45 pmSOF - STL
2 stops28h 55mLufthansa
Deal found 6/1$1,203
Mon 7/2210:19 amSTL - SOF
2 stops17h 51mUnited Airlines
Wed 8/76:00 amSOF - STL
2 stops24h 37mUnited Airlines
Deal found 5/31$1,218
Sun 7/146:09 pmSTL - SOF
2 stops17h 01mBritish Airways
Mon 7/298:00 pmSOF - STL
2 stops29h 19mBritish Airways
Deal found 5/31$1,221
Tue 7/234:05 pmSTL - SOF
2 stops18h 40mMultiple Airlines
Thu 8/16:30 amSOF - STL
2 stops22h 35mMultiple Airlines
Deal found 5/31$1,232
Thu 7/181:10 pmSTL - SOF
2 stops15h 00mLufthansa
Tue 7/306:45 pmSOF - STL
2 stops28h 55mLufthansa
Deal found 6/1$1,250
Mon 7/221:04 pmSTL - SOF
2 stops15h 06mUnited Airlines
Thu 8/16:30 amSOF - STL
2 stops22h 01mUnited Airlines
Deal found 5/31$1,252

Find flights from St. Louis to Sofia within your budget

Customize your flight search to find flights from St. Louis to Sofia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,047 - $1,482

Route

Depart

Return

Price

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

Fri 7/5

2 stops17h 51m

Sofia

Fri 7/19

2 stops17h 10m

$1,047

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

Mon 7/22

2 stops21h 05m

Sofia

Fri 8/2

2 stops17h 40m

$1,128

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

Fri 7/5

1 stop13h 55m

Sofia

Fri 7/19

2 stops17h 10m

$1,178

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

Mon 7/22

2 stops17h 51m

Sofia

Wed 8/7

2 stops24h 37m

$1,218

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

Sun 7/14

2 stops17h 01m

Sofia

Mon 7/29

2 stops29h 19m

$1,221

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

Tue 7/23

2 stops18h 40m

Sofia

Thu 8/1

2 stops22h 35m

$1,232

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

Sun 7/21

2 stops20h 14m

Sofia

Mon 7/29

2 stops29h 19m

$1,271

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

Wed 7/17

2 stops24h 35m

Sofia

Mon 7/29

2 stops35h 21m

$1,272

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

Thu 7/18

2 stops16h 15m

Sofia

Tue 7/30

2 stops22h 37m

$1,482

Flights are sorted by cheapest first

Deals found on 6/2

What is the cheapest day to fly from St. Louis to Sofia?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Sofia. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Sofia flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from St. Louis to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Sofia by month

Plan your trip to Sofia by taking into account the average temperature and rainfall totals by month.

SOF

Temperature

30.2 - 68 °F

Reviews of airlines servicing Sofia

Get insights into the airlines that provide service to Sofia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sofia. Reviews last updated June 2, 2024.
Read reviews from past customers who have flown United Airlines, Lufthansa and British Airways from St. Louis to Sofia. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.7
Good
1,016 reviews
Check prices

Boarding

7.6

Crew

8.1

Entertainment

6.8

Overall

7.7

Food

6.8

Comfort

7.4

Reviews

1 / 10

FLight duration is OK, the plane is fine, the food is bad

Austrian Airlines
7.7
Good
1,016 reviews
Austrian Airlines
7.7
Good
1,016 reviews
Check prices

Boarding

7.6

Crew

8.1

Entertainment

6.8

Overall

7.7

Food

6.8

Comfort

7.4

Reviews

1 / 10

FLight duration is OK, the plane is fine, the food is bad

United Airlines
7.4
Good
10,755 reviews
Austrian Airlines
7.7
Good
1,016 reviews
Check prices

Boarding

7.6

Crew

8.1

Entertainment

6.8

Overall

7.7

Food

6.8

Comfort

7.4

Reviews

1 / 10

FLight duration is OK, the plane is fine, the food is bad

Air Canada
7.0
Good
7,021 reviews
Austrian Airlines
7.7
Good
1,016 reviews
Check prices

Boarding

7.6

Crew

8.1

Entertainment

6.8

Overall

7.7

Food

6.8

Comfort

7.4

Reviews

1 / 10

FLight duration is OK, the plane is fine, the food is bad

Lufthansa
7.0
Good
7,557 reviews
Austrian Airlines
7.7
Good
1,016 reviews
Check prices

Boarding

7.6

Crew

8.1

Entertainment

6.8

Overall

7.7

Food

6.8

Comfort

7.4

Reviews

1 / 10

FLight duration is OK, the plane is fine, the food is bad

British Airways
6.8
Okay
6,755 reviews
Austrian Airlines
7.7
Good
1,016 reviews
Check prices

Boarding

7.6

Crew

8.1

Entertainment

6.8

Overall

7.7

Food

6.8

Comfort

7.4

Reviews

1 / 10

FLight duration is OK, the plane is fine, the food is bad

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Sofia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from St. Louis to Sofia for under $1,100 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Sofia for under $1,100. The cheapest flight booked recently is on United Airlines for just $1,047, but on average you can expect to pay $1,256.

  • What are the cheapest airlines flying from St. Louis to Sofia round-trip?

    United Airlines, at $1,047, was found to be the cheapest airline from St. Louis to Sofia.Alternate airlines to your destination round-trip include Lufthansa and British Airways. Users have found that United Airlines is 5% cheaper than the other options available to this destination.

  • What does STL to SOF mean?

    Great question - STL to SOF just means Lambert-St Louis Airport to Sofia Airport. Now you’ll know what these unique codes when you look for flights!

  • Can I find deals for flights from St. Louis to Sofia that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Sofia flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Sofia with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Sofia flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from St. Louis to Sofia that include hotel bookings?

    Yes. In addition to deals on St. Louis to Sofia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Sofia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Sofia.

  • Can I find deals for business class flights from St. Louis to Sofia?

    Yes. Cheapflights offers flight deals from St. Louis to Sofia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from St. Louis to Sofia that allow pets onboard?

    Many airlines flying from St. Louis to Sofia offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Sofia?

    Yes, you can often find last-minute deals on St. Louis to Sofia flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Sofia flight deals updated?

    The St. Louis to Sofia flight deals you see on this page were last updated on 6/2.

  • What are the most popular airlines that fly from St. Louis to Sofia?

    Air Canada, British Airways and Lufthansa are the most popular airlines when flying from St. Louis to Sofia.

  • What is the cheapest month to book a flight from St. Louis to Sofia?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Sofia (average of $660). Flying from St. Louis to Sofia in June is currently the most expensive (average of $1,270). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for St. Louis to Sofia
See prices for flight routes from nearby airports that may be better suited for you.

Kansas City to Sofia flights

Top 4 airlines flying from St. Louis to Sofia

Discover the top 4 airlines that operate flights from St. Louis to Sofia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$694Average$1,099FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest$726Average$1,163FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest$817Average$1,461FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapest$860Average$1,088FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
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Search flights from St. Louis to Sofia by cabin class

Find flights from St. Louis to Sofia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to Sofia?

When you search for this flight from St. Louis to Sofia, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Sofia?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from St. Louis to Sofia for you. Better yet — we are completely free to use.

Can Cheapflights find flights from St. Louis to Sofia with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from St. Louis to Sofia, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from St. Louis to Sofia become cheaper?

Yes! Start tracking prices for St. Louis to Sofia flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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