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STL - SOF
sep. 15 - sep. 22
Sofia

$680+ Cheap flights from St. Louis (STL) to Sofia (SOF)

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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SOF
sep. 15 — sep. 221
dom. 9/15
dom. 9/22
1 adult, Economy
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STL - SOF
sep. 15 - sep. 22

Find cheap flights from St. Louis to Sofia with Cheapflights

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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 Saturday or Thursday and return on a Monday

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 septiembre 10, 2024.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Popular in

June

Cheapest in

February

Average price

$980

Round-trip from

$680
(Gotogate)
Provider with most accurate pricing for Lambert-St Louis-Sofia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Sofia flights.
Search Deals
High demand for flights, 29% potential price rise
Search Deals
Best time to find cheap flights, 34% potential price drop
Search Deals
Average for round-trip flights in September 2024
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From Lambert-St Louis to Sofia
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Cheap St. Louis to Sofia flights in September & October 2024

Find cheap flight options from St. Louis to Sofia specifically for the months of September and October 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,868,638 searches. Prices were last updated on septiembre 10, 2024.
This Gotogate deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/1011:00 amSTL - SOF
2 stops16h 20mMultiple Airlines
mié. 10/166:30 amSOF - STL
2 stops22h 35mMultiple Airlines
Deal found 9/10$680
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/109:50 amSTL - SOF
2 stops28h 45mUnited Airlines
mié. 10/166:30 amSOF - STL
3 stops35h 37mUnited Airlines
Deal found 9/10$727
This Gotogate deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/1011:00 amSTL - SOF
2 stops16h 20mMultiple Airlines
mié. 10/166:30 amSOF - STL
1 stop15h 00mMultiple Airlines
Deal found 9/10$994
This Mytrip deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/1011:00 amSTL - SOF
3 stops23h 05mMultiple Airlines
mié. 10/166:45 pmSOF - STL
3 stops28h 50mMultiple Airlines
Deal found 9/10$1,143

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 2,868,638 searches. Data last updated septiembre 10, 2024.
This Gotogate deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/1011:00 amSTL - SOF
2 stops16h 20mMultiple Airlines
mié. 10/166:30 amSOF - STL
2 stops22h 35mMultiple Airlines
Deal found 9/10$680
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/109:50 amSTL - SOF
2 stops28h 45mUnited Airlines
mié. 10/166:30 amSOF - STL
3 stops35h 37mUnited Airlines
Deal found 9/10$727
This Gotogate deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/1011:00 amSTL - SOF
2 stops16h 20mMultiple Airlines
mié. 10/166:30 amSOF - STL
1 stop15h 00mMultiple Airlines
Deal found 9/10$994
This Mytrip deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/1011:00 amSTL - SOF
3 stops23h 05mMultiple Airlines
mié. 10/166:45 pmSOF - STL
3 stops28h 50mMultiple Airlines
Deal found 9/10$1,143

One-way flights to Sofia from St. Louis

Search for one-way flight options from St. Louis to Sofia. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,868,638 searches. Data last updated septiembre 10, 2024.
This oojo deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/206:00 amSTL - SOF
2 stops30h 50mTurkish Airlines
Deal found 9/9$965
This KAYAK deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/203:45 pmSTL - SOF
1 stop14h 15mLufthansa
Deal found 9/10$1,055
This KAYAK deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/203:45 pmSTL - SOF
1 stop14h 15mLufthansa
Deal found 9/9$1,062
This Air Canada deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/2010:35 amSTL - SOF
3 stops19h 25mAir Canada
Deal found 9/9$2,857
This Air Canada deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/2011:30 amSTL - SOF
3 stops18h 30mAir Canada
Deal found 9/10$3,832

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 2,868,638 searches. Data last updated septiembre 10, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$680 - $1,143

Route

Depart

Return

Price

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

jue. 10/10

2 stops16h 20m

Sofia

mié. 10/16

2 stops22h 35m

$680

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

jue. 10/10

2 stops28h 45m

Sofia

mié. 10/16

3 stops35h 37m

$727

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

jue. 10/10

2 stops16h 20m

Sofia

mié. 10/16

1 stop15h 00m

$994

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

jue. 10/10

3 stops23h 05m

Sofia

mié. 10/16

3 stops28h 50m

$1,143

Flights are sorted by cheapest first

Deals found on 9/10

Compare providers for flights from St. Louis to Sofia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Sofia in September.
ProviderPrice AccuracyTrust Score*Cancellation Policy
ExpediaPrice Accuracy1 starTrust Score*3 starsCancellation PolicyAirline Policy
AranGrantPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
FlightHubPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Sofia flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on St. Louis-Sofia flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from St. Louis-Sofia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Sofia flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Sofia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

Travel insights for flights from St. Louis to Sofia

Get recent, data-driven insights about flights from St. Louis to Sofia including ideal travel times, pricing trends, and more.

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

Currently, March is the cheapest month in which you can book a flight from St. Louis to Sofia (average of $507). Flying from St. Louis to Sofia in June is currently the most expensive (average of $1,208). 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.

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

Our users search for these airlines the most when looking for flights from St. Louis to Sofia. Data last updated on septiembre 10, 2024.

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

Lufthansa

Lufthansa

From $755

United Airlines

United Airlines

From $726

Air Canada

Air Canada

From $600

Rainfall in Sofia by month

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

In terms of precipitation, rainfall in Sofia ranges from 1.2 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Sofia when rainfall is around 1.2 in.

Temperature in Sofia by month

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

If weather is an important factor for your trip to Sofia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 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 septiembre 10, 2024.
Turkish Airlines
7.4
Good
3,799 reviews

Boarding

7.3

Food

7.4

Comfort

7.4

Overall

7.4

Entertainment

7.5

Crew

7.8

Reviews

1 / 10

Flight attachments were not ok , they need to smile and show that they are helpful, they need to offer more often drinks and better snacks not dry breads

Turkish Airlines
7.4
Good
3,799 reviews
Turkish Airlines
7.4
Good
3,799 reviews

Boarding

7.3

Food

7.4

Comfort

7.4

Overall

7.4

Entertainment

7.5

Crew

7.8

Reviews

1 / 10

Flight attachments were not ok , they need to smile and show that they are helpful, they need to offer more often drinks and better snacks not dry breads

United Airlines
7.4
Good
9,584 reviews
Turkish Airlines
7.4
Good
3,799 reviews

Boarding

7.3

Food

7.4

Comfort

7.4

Overall

7.4

Entertainment

7.5

Crew

7.8

Reviews

1 / 10

Flight attachments were not ok , they need to smile and show that they are helpful, they need to offer more often drinks and better snacks not dry breads

Air Canada
6.9
Okay
7,605 reviews
Turkish Airlines
7.4
Good
3,799 reviews

Boarding

7.3

Food

7.4

Comfort

7.4

Overall

7.4

Entertainment

7.5

Crew

7.8

Reviews

1 / 10

Flight attachments were not ok , they need to smile and show that they are helpful, they need to offer more often drinks and better snacks not dry breads

Lufthansa
6.8
Okay
7,248 reviews
Turkish Airlines
7.4
Good
3,799 reviews

Boarding

7.3

Food

7.4

Comfort

7.4

Overall

7.4

Entertainment

7.5

Crew

7.8

Reviews

1 / 10

Flight attachments were not ok , they need to smile and show that they are helpful, they need to offer more often drinks and better snacks not dry breads

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 $700 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Sofia for under $700. The cheapest flight booked recently is on Multiple Airlines for just $680, but on average you can expect to pay $886.

  • What is the cheapest airline to fly from St. Louis to Sofia round-trip?

    United Airlines, at $727, was found to be the cheapest airline from St. Louis to Sofia.. Users have found that United Airlines is 31% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from St. Louis to Sofia one-way?

    One-way options have recently been found by users for as low as $965 on Turkish Airlines. Other airlines that offer cheap prices include Lufthansa from $1,055 and Air Canada from $2,857 one-way.

  • 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 9/10.

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

    Currently, March is the cheapest month in which you can book a flight from St. Louis to Sofia (average of $507). Flying from St. Louis to Sofia in June is currently the most expensive (average of $1,208). 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.

See more FAQs

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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 3 airlines flying from St. Louis to Sofia

Discover the top 3 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 2,868,638 searches. Data last updated septiembre 10, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$600Average$1,085FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$726Average$1,141FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$755Average$1,397FlexibilityNo cancel feeOn-time76%
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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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