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$713+ Cheap flights from St. Louis (STL) to Bulgaria

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 3/13. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SOF
Dec 25 — Jan 11
Wed 12/25
Wed 1/1
1 adult, Economy
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Cheap flight deals from St. Louis to Bulgaria

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Bulgaria (BG0). 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 December 20, 2024.

Round-trip from

$713
(United)
From Lambert-St Louis to Bulgaria
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Find flight deals from St. Louis to Bulgaria

Best flights from St. Louis to Bulgaria
Discover carefully curated flight deals from St. Louis to Bulgaria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 20, 2024.

This United deal was found by Cheapflights users on 12/19. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/133:25 pmSTL - SOF
2 stops24h 20mUnited Airlines
Thu 3/271:45 pmSOF - STL
2 stops31h 48mUnited Airlines
Deal found 12/19$713
This FlightHub deal was found by Cheapflights users on 12/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/133:50 pmSTL - SOF
2 stops43h 00mMultiple Airlines
Thu 3/276:35 pmSOF - STL
1 stop27h 20mMultiple Airlines
Deal found 12/19$874
This Gurufare deal was found by Cheapflights users on 12/19. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/155:33 pmSTL - SOF
2 stops21h 52mLufthansa
Sat 3/226:30 pmSOF - STL
1 stop27h 25mLufthansa
Deal found 12/19$1,104
This Air Canada deal was found by Cheapflights users on 12/19. 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.
Thu 3/1311:05 amSTL - SOF
3 stops19h 20mAir Canada
Thu 3/272:25 pmSOF - STL
3 stops27h 37mAir Canada
Deal found 12/19$1,679

Find flights from St. Louis to Bulgaria within your budget

Customize your flight search to find flights from St. Louis to Bulgaria 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 2,558,603 searches. Data last updated December 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

Thu 3/13

3:25 pm-10:45 pm

2 stops24h 20m

Sofia

Thu 3/27

1:45 pm-2:33 pm

2 stops31h 48m

$713

St. LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

Thu 3/13

3:50 pm-5:50 pm

2 stops43h 00m

Sofia

Thu 3/27

6:35 pm-2:55 pm

1 stop27h 20m

$874

St. LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

Sat 3/15

5:33 pm-10:25 pm

2 stops21h 52m

Sofia

Sat 3/22

6:30 pm-2:55 pm

1 stop27h 25m

$1,104

St. LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

Thu 3/13

11:05 am-1:25 pm

3 stops19h 20m

Sofia

Thu 3/27

2:25 pm-11:02 am

3 stops27h 37m

$1,679

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/19

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

Have a flexible travel schedule? Discover the best time to fly to Bulgaria 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 Bulgaria

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

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

Currently, November is the cheapest month in which you can book a flight from St. Louis to Bulgaria (average of $632). Flying from St. Louis to Bulgaria in June is currently the most expensive (average of $1,243). 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.

Rainfall in Bulgaria by month

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

In terms of precipitation, rainfall in Bulgaria 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 Bulgaria when rainfall is around 1.2 in.

Temperature in Bulgaria by month

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

If weather is an important factor for your trip to Bulgaria, 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 Bulgaria

Get insights into the airlines that provide service to Bulgaria. 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 Bulgaria. Reviews last updated December 20, 2024.
United Airlines
7.4
Good
9,043 reviews

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.7

Overall

7.4

Reviews

1 / 10

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

United Airlines
7.4
Good
9,043 reviews
United Airlines
7.4
Good
9,043 reviews

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.7

Overall

7.4

Reviews

1 / 10

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

Air Canada
7.0
Good
8,401 reviews
United Airlines
7.4
Good
9,043 reviews

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.7

Overall

7.4

Reviews

1 / 10

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

Lufthansa
6.8
Okay
7,089 reviews
United Airlines
7.4
Good
9,043 reviews

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.7

Overall

7.4

Reviews

1 / 10

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

Related info for your journey

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

  • What airport do you fly from for flights from St. Louis to Bulgaria?

    Located just 12.7 mi from the city center, Lambert-St Louis (STL) is the airport most travelers will use when flying to Bulgaria from St. Louis.

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

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Bulgaria (average of $632). Flying from St. Louis to Bulgaria in June is currently the most expensive (average of $1,243). 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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Top 3 airlines flying from St. Louis to Bulgaria

Discover the top 3 airlines that operate flights from St. Louis to Bulgaria. 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 2,558,603 searches. Data last updated December 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$600Average$1,085FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$726Average$1,153FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$801Average$1,355FlexibilityNo cancel feeOn-time76%
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