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Cheap flights from St. Louis (STL) to Sofia (SOF) from $612

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 11/6. 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. 4 — jun. 111
From?
To?
mar. 6/4
mar. 6/11
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 mayo 30, 2024.

Popular in

December

Cheapest in

February

Average price

$1,472

Round-trip from

$660
High demand for flights, 28% potential price rise
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Best time to find cheap flights, 37% potential price drop
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Average for round-trip flights in May 2024
Search Deals
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 $1,115. You can even find prices in February for less than $1,115, 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 39%.

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 British Airways flights from St. Louis to Sofia

Explore cheap flight options specifically provided by British Airways 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 2,784,634 searches. Data last updated mayo 30, 2024.
Take a peek at the cheapest British Airways 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.
mié. 9/256:30 pmSTL - SOF
2 stops18h 00mBritish Airways
lun. 10/78:00 pmSOF - STL
2 stops29h 22mBritish Airways
Deal found 5/29$836
mié. 9/256:30 pmSTL - SOF
2 stops18h 00mBritish Airways
sáb. 10/58:05 pmSOF - STL
2 stops27h 39mBritish Airways
Deal found 5/29$886
mié. 9/254:17 pmSTL - SOF
2 stops37h 13mBritish Airways
dom. 10/69:00 pmSOF - STL
2 stops32h 35mBritish Airways
Deal found 5/29$914
jue. 9/266:00 amSTL - SOF
2 stops23h 30mBritish Airways
sáb. 10/58:05 pmSOF - STL
2 stops27h 39mBritish Airways
Deal found 5/29$936
vie. 9/276:14 pmSTL - SOF
2 stops16h 46mBritish Airways
dom. 10/69:00 pmSOF - STL
2 stops32h 35mBritish Airways
Deal found 5/29$964
dom. 6/166:08 pmSTL - SOF
2 stops17h 02mBritish Airways
mar. 7/239:15 pmSOF - STL
2 stops31h 34mBritish Airways
Deal found 5/29$1,026
dom. 7/212:56 pmSTL - SOF
2 stops20h 14mBritish Airways
dom. 8/49:00 pmSOF - STL
2 stops25h 26mBritish Airways
Deal found 5/28$1,259
dom. 7/286:09 pmSTL - SOF
2 stops17h 01mBritish Airways
dom. 8/49:00 pmSOF - STL
2 stops25h 26mBritish Airways
Deal found 5/28$1,285
sáb. 7/276:09 pmSTL - SOF
2 stops17h 56mBritish Airways
dom. 8/49:00 pmSOF - STL
2 stops25h 26mBritish Airways
Deal found 5/28$1,309

Cheap Air Canada flights from St. Louis to Sofia

Explore cheap flight options specifically provided by Air Canada 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 2,784,634 searches. Data last updated mayo 30, 2024.
To aid your search, here are some of the cheapest Air Canada flights we've found from St. Louis to Sofia. Ensure the flight price, dates, time, and airline match your criteria before you book.
mié. 9/2510:10 amSTL - SOF
2 stops18h 00mAir Canada
mié. 10/96:00 amSOF - STL
2 stops22h 00mAir Canada
Deal found 5/29$1,014
jue. 9/2610:10 amSTL - SOF
2 stops18h 00mAir Canada
mié. 10/96:00 amSOF - STL
2 stops22h 00mAir Canada
Deal found 5/29$1,064
vie. 9/2710:10 amSTL - SOF
2 stops18h 00mAir Canada
sáb. 10/56:00 amSOF - STL
2 stops22h 00mAir Canada
Deal found 5/29$1,114
mié. 7/2410:10 amSTL - SOF
2 stops18h 00mAir Canada
vie. 8/22:05 pmSOF - STL
2 stops37h 56mAir Canada
Deal found 5/28$1,268

Cheap St. Louis to Sofia flights in May & June 2024

Find cheap flight options from St. Louis to Sofia specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Prices were last updated on mayo 30, 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.
dom. 6/166:08 pmSTL - SOF
2 stops17h 02mBritish Airways
mar. 7/239:15 pmSOF - STL
2 stops31h 34mBritish Airways
Deal found 5/29$1,026
mar. 6/254:05 pmSTL - SOF
2 stops18h 40mMultiple Airlines
vie. 7/126:30 amSOF - STL
2 stops22h 35mMultiple Airlines
Deal found 5/28$1,082
sáb. 6/295:30 pmSTL - SOF
2 stops33h 50mUnited Airlines
mar. 7/236:00 amSOF - STL
2 stops24h 11mUnited Airlines
Deal found 5/29$1,109
mar. 6/255:31 pmSTL - SOF
2 stops17h 14mUnited Airlines
mar. 7/166:00 amSOF - STL
2 stops17h 40mUnited Airlines
Deal found 5/28$1,183
mar. 6/255:31 pmSTL - SOF
2 stops17h 14mUnited Airlines
mié. 7/1712:55 pmSOF - STL
2 stops33h 23mUnited Airlines
Deal found 5/28$1,189
mar. 6/2511:00 amSTL - SOF
2 stops18h 10mMultiple Airlines
lun. 7/157:30 pmSOF - STL
2 stops28h 10mMultiple Airlines
Deal found 5/28$1,191
vie. 6/289:44 amSTL - SOF
2 stops25h 16mAmerican Airlines
mar. 7/239:15 pmSOF - STL
2 stops43h 57mAmerican Airlines
Deal found 5/30$1,193
mar. 6/255:31 pmSTL - SOF
2 stops17h 14mUnited Airlines
jue. 7/186:00 amSOF - STL
2 stops17h 40mUnited Airlines
Deal found 5/28$1,298
mar. 6/255:31 pmSTL - SOF
2 stops17h 14mUnited Airlines
sáb. 7/136:00 amSOF - STL
2 stops23h 37mUnited Airlines
Deal found 5/28$1,333

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 2,784,634 searches. Data last updated mayo 30, 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.
mié. 11/63:45 pmSTL - SOF
1 stop18h 05mMultiple Airlines
mié. 11/136:00 amSOF - STL
1 stop15h 55mMultiple Airlines
Deal found 5/30$612
mié. 11/65:37 pmSTL - SOF
2 stops21h 08mLufthansa
mié. 11/136:00 amSOF - STL
1 stop15h 55mLufthansa
Deal found 5/30$615
mié. 11/65:37 pmSTL - SOF
2 stops16h 33mLufthansa
mié. 11/136:05 amSOF - STL
2 stops15h 50mLufthansa
Deal found 5/30$635
mié. 9/256:30 pmSTL - SOF
2 stops18h 00mBritish Airways
lun. 10/78:00 pmSOF - STL
2 stops29h 22mBritish Airways
Deal found 5/29$836
mié. 9/258:25 amSTL - SOF
2 stops30h 35mUnited Airlines
mié. 10/212:55 pmSOF - STL
2 stops18h 07mUnited Airlines
Deal found 5/30$858
mié. 9/256:30 pmSTL - SOF
2 stops18h 00mBritish Airways
sáb. 10/58:05 pmSOF - STL
2 stops27h 39mBritish Airways
Deal found 5/29$886
mié. 9/258:25 amSTL - SOF
2 stops30h 35mLufthansa
mié. 10/26:30 amSOF - STL
1 stop15h 00mLufthansa
Deal found 5/30$901
mié. 9/254:17 pmSTL - SOF
2 stops37h 13mBritish Airways
dom. 10/69:00 pmSOF - STL
2 stops32h 35mBritish Airways
Deal found 5/29$914
jue. 9/266:00 amSTL - SOF
2 stops23h 30mBritish Airways
dom. 10/69:00 pmSOF - STL
2 stops31h 07mBritish Airways
Deal found 5/29$936

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 2,784,634 searches. Data last updated mayo 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$836 - $1,087

Route

Depart

Return

Price

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

mié. 9/25

2 stops18h 00m

Sofia

lun. 10/7

2 stops29h 22m

$836

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

mié. 9/25

2 stops18h 00m

Sofia

sáb. 10/5

2 stops27h 39m

$886

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

mié. 9/25

2 stops37h 13m

Sofia

dom. 10/6

2 stops32h 35m

$914

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

mié. 9/25

2 stops18h 00m

Sofia

mar. 10/8

2 stops17h 05m

$1,011

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

mié. 9/25

2 stops18h 00m

Sofia

mié. 10/9

2 stops22h 00m

$1,014

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

mié. 9/25

1 stop13h 55m

Sofia

mar. 10/8

2 stops17h 59m

$1,036

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

mié. 9/25

2 stops18h 00m

Sofia

mié. 10/9

1 stop15h 00m

$1,042

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

jue. 9/26

2 stops24h 35m

Sofia

mar. 10/8

2 stops17h 05m

$1,061

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

jue. 9/26

3 stops20h 16m

Sofia

lun. 10/7

2 stops29h 17m

$1,087

Flights are sorted by cheapest first

Deals found on 5/29

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.
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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 mayo 30, 2024.
Read reviews from past customers who have flown British Airways, Air Canada and Lufthansa 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.
United Airlines
7.4
Good
10,777 reviews
Check prices

Entertainment

7.1

Boarding

7.7

Food

6.7

Comfort

7.2

Crew

8.1

Overall

7.4

Reviews

1 / 10

Flight from shv was great. My connecting flight was canceled though. Had to stay overnight in airport

United Airlines
7.4
Good
10,777 reviews
United Airlines
7.4
Good
10,777 reviews
Check prices

Entertainment

7.1

Boarding

7.7

Food

6.7

Comfort

7.2

Crew

8.1

Overall

7.4

Reviews

1 / 10

Flight from shv was great. My connecting flight was canceled though. Had to stay overnight in airport

American Airlines
7.3
Good
14,284 reviews
United Airlines
7.4
Good
10,777 reviews
Check prices

Entertainment

7.1

Boarding

7.7

Food

6.7

Comfort

7.2

Crew

8.1

Overall

7.4

Reviews

1 / 10

Flight from shv was great. My connecting flight was canceled though. Had to stay overnight in airport

Air Canada
7.0
Good
7,004 reviews
United Airlines
7.4
Good
10,777 reviews
Check prices

Entertainment

7.1

Boarding

7.7

Food

6.7

Comfort

7.2

Crew

8.1

Overall

7.4

Reviews

1 / 10

Flight from shv was great. My connecting flight was canceled though. Had to stay overnight in airport

Lufthansa
7.0
Good
7,582 reviews
United Airlines
7.4
Good
10,777 reviews
Check prices

Entertainment

7.1

Boarding

7.7

Food

6.7

Comfort

7.2

Crew

8.1

Overall

7.4

Reviews

1 / 10

Flight from shv was great. My connecting flight was canceled though. Had to stay overnight in airport

British Airways
6.8
Okay
6,765 reviews
United Airlines
7.4
Good
10,777 reviews
Check prices

Entertainment

7.1

Boarding

7.7

Food

6.7

Comfort

7.2

Crew

8.1

Overall

7.4

Reviews

1 / 10

Flight from shv was great. My connecting flight was canceled though. Had to stay overnight in airport

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 $900 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Sofia for under $900. The cheapest flight booked recently is on British Airways for just $836, but on average you can expect to pay $1,040.

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

    British Airways, at $836, was found to be the cheapest airline from St. Louis to Sofia.Alternate airlines to your destination round-trip include Air Canada and Lufthansa. Users have found that British Airways is 25% 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 5/30.

  • 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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Browse thousands of different options on Cheapflights for your next trip

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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 2,784,634 searches. Data last updated mayo 30, 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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