$1,000+ 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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SOF
May 5 — May 121
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Bulgaria
Keep the following information in mind while searching for St. Louis to Bulgaria flight deals. Data was last updated April 30, 2025.
Most accurate provider | AranGrant 3 stars |
|---|---|
Most trusted provider | AranGrant 3 stars |
Round-trip from | $1,000 (Air Canada) |
Popular in | June |
Cheapest in | February |
Average price | $999 |
Find flight deals from St. Louis to Bulgaria
Cheapest flights from St. Louis to BulgariaExplore the most affordable flight options available from St. Louis to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.
Explore the most affordable flight options available from St. Louis to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.
This Air Canada deal was found by Cheapflights users on 4/28. 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.
Sun 5/187:30 amSTL - SOF
2 stops27h 10mAir Canada
Fri 6/136:15 amSOF - STL
2 stops21h 43mAir Canada
Deal found 4/28![Air Canada logo]()
$1,000
This Gurufare deal was found by Cheapflights users on 4/28. 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.
Tue 7/85:31 pmSTL - SOF
2 stops17h 09mLufthansa
Tue 7/226:00 amSOF - STL
2 stops17h 47mLufthansa
Deal found 4/28![Lufthansa logo]()
$1,004
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Wed 5/281:30 pmSTL - SOF
2 stops25h 20mUnited Airlines
Tue 7/296:00 amSOF - STL
2 stops41h 16mUnited Airlines
Deal found 4/28![United Airlines logo]()
$1,200
This FlightHub deal was found by Cheapflights users on 4/28. 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.
Sun 5/187:30 amSTL - SOF
2 stops20h 30mMultiple Airlines
Fri 6/136:15 amSOF - STL
1 stop15h 15mMultiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$1,204
This FlightHub deal was found by Cheapflights users on 4/28. 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.
Mon 4/283:40 pmSTL - SOF
2 stops20h 45mTurkish Airlines
Thu 5/83:35 pmSOF - STL
2 stops31h 12mTurkish Airlines
Deal found 4/28![Turkish Airlines logo]()
$1,576
Cheapflights Fare Finder
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 April 30, 2025.
Use the filters below to find and compare flights from St. Louis to Bulgaria that are best for you.
Fly from
St. Louis
Fly to
Bulgaria
Route
Depart
Return
Price
St. LouisSofia
STL - SOF
STLSOF
Lambert-St Louis
Sun 5/18
7:30 am-6:40 pm
2 stops27h 10m
Sofia
Fri 6/13
6:15 am-7:58 pm
2 stops21h 43m
$1,000
St. LouisSofia
STL - SOF
STLSOF
Lambert-St Louis
Tue 7/8
5:31 pm-6:40 pm
2 stops17h 09m
Sofia
Tue 7/22
6:00 am-3:47 pm
2 stops17h 47m
$1,004
St. LouisSofia
STL - SOF
STLSOF
Lambert-St Louis
Wed 5/28
1:30 pm-10:50 pm
2 stops25h 20m
Sofia
Tue 7/29
6:00 am-3:16 pm
2 stops41h 16m
$1,200
St. LouisSofia
STL - SOF
STLSOF
Lambert-St Louis
Sun 5/18
7:30 am-12:00 pm
2 stops20h 30m
Sofia
Fri 6/13
6:15 am-1:30 pm
1 stop15h 15m
$1,204
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.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Bulgaria
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 $1,218). 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 April 30, 2025.
See what other customers who have flown with United Airlines, Air Canada and Lufthansa from St. Louis to Bulgaria have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Food
6.6
Entertainment
7.1
Crew
8.1
Boarding
7.7
Overall
7.4
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Comfort
7.3
Food
6.6
Entertainment
7.1
Crew
8.1
Boarding
7.7
Overall
7.4
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Comfort
7.3
Food
6.6
Entertainment
7.1
Crew
8.1
Boarding
7.7
Overall
7.4
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Comfort
7.3
Food
6.6
Entertainment
7.1
Crew
8.1
Boarding
7.7
Overall
7.4
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
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.
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Alternative routes for St. Louis to Bulgaria
See prices for flight routes from nearby airports that may be better suited for you.
Top 2 airlines flying from St. Louis to Bulgaria
Discover the top 2 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 April 30, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$711 | Average$1,083 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$737 | Average$1,051 | FlexibilityNo cancel fee | On-time76% |