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Cheap flights from St. Louis (STL) to Sofia (SOF) from $1,145

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 7/31. 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 16 — Jun 231
From?
To?
Sun 6/16
Sun 6/23
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 Saturday or Tuesday and return on a Thursday

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 11, 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 Friday, 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 St. Louis to Sofia flights in June & July 2024

Find cheap flight options from St. Louis to Sofia specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,080,152 searches. Prices were last updated on June 11, 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.
Wed 7/315:30 pmSTL - SOF
2 stops17h 15mLufthansa
Fri 8/166:30 amSOF - STL
2 stops17h 10mLufthansa
Deal found 6/10$1,145
Wed 7/3111:25 amSTL - SOF
2 stops15h 55mUnited Airlines
Fri 8/166:30 amSOF - STL
3 stops23h 47mUnited Airlines
Deal found 6/10$1,245
Wed 7/313:25 pmSTL - SOF
1 stop23h 10mUnited Airlines
Fri 8/166:00 amSOF - STL
2 stops23h 37mUnited Airlines
Deal found 6/10$1,266
Thu 6/131:10 pmSTL - SOF
2 stops26h 45mAustrian Airlines
Thu 6/206:45 pmSOF - STL
2 stops34h 59mAustrian Airlines
Deal found 6/11$1,367
Thu 6/135:31 pmSTL - SOF
2 stops21h 04mLufthansa
Thu 6/202:05 pmSOF - STL
1 stop31h 25mLufthansa
Deal found 6/11$1,494
Wed 7/313:25 pmSTL - SOF
1 stop23h 10mLufthansa
Fri 8/166:30 amSOF - STL
1 stop15h 00mLufthansa
Deal found 6/10$1,574

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 3,080,152 searches. Data last updated June 11, 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.
Wed 7/315:30 pmSTL - SOF
2 stops17h 15mLufthansa
Fri 8/166:30 amSOF - STL
2 stops17h 10mLufthansa
Deal found 6/10$1,145
Wed 7/3111:25 amSTL - SOF
2 stops15h 55mUnited Airlines
Fri 8/166:30 amSOF - STL
3 stops23h 47mUnited Airlines
Deal found 6/10$1,245
Wed 7/313:25 pmSTL - SOF
1 stop23h 10mUnited Airlines
Fri 8/166:00 amSOF - STL
2 stops23h 37mUnited Airlines
Deal found 6/10$1,266
Thu 6/131:10 pmSTL - SOF
2 stops26h 45mAustrian Airlines
Thu 6/206:45 pmSOF - STL
2 stops34h 59mAustrian Airlines
Deal found 6/11$1,367
Thu 6/135:31 pmSTL - SOF
2 stops21h 04mLufthansa
Thu 6/202:05 pmSOF - STL
1 stop31h 25mLufthansa
Deal found 6/11$1,494
Wed 7/313:25 pmSTL - SOF
1 stop23h 10mLufthansa
Fri 8/166:30 amSOF - STL
1 stop15h 00mLufthansa
Deal found 6/10$1,574

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 3,080,152 searches. Data last updated June 11, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,145 - $1,574

Route

Depart

Return

Price

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

Wed 7/31

2 stops17h 15m

Sofia

Fri 8/16

2 stops17h 10m

$1,145

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

Wed 7/31

2 stops15h 55m

Sofia

Fri 8/16

3 stops23h 47m

$1,245

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

Wed 7/31

1 stop23h 10m

Sofia

Fri 8/16

2 stops23h 37m

$1,266

Lambert-St LouisSofia

STL - SOF

STLSOF

Lambert-St Louis

Wed 7/31

1 stop23h 10m

Sofia

Fri 8/16

1 stop15h 00m

$1,574

Flights are sorted by cheapest first

Deals found on 6/10

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 June 9, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Sofia flight should consider departing on Thursday 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

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 June 11, 2024.
Read reviews from past customers who have flown Lufthansa and United Airlines 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
10,629 reviews

Food

6.7

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.2

Reviews

1 / 10

Basic and no-frills. Late timing put pressure on disembarking and making connections.

United Airlines
7.4
Good
10,629 reviews
United Airlines
7.4
Good
10,629 reviews

Food

6.7

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.2

Reviews

1 / 10

Basic and no-frills. Late timing put pressure on disembarking and making connections.

Lufthansa
7.0
Good
7,493 reviews
United Airlines
7.4
Good
10,629 reviews

Food

6.7

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.2

Reviews

1 / 10

Basic and no-frills. Late timing put pressure on disembarking and making connections.

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 $1,200 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Sofia for under $1,200. The cheapest flight booked recently is on Lufthansa for just $1,145, but on average you can expect to pay $1,307.

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

    Lufthansa, at $1,145, was found to be the cheapest airline from St. Louis to Sofia. An alternate airline flying to your destination would be United Airlines.

  • 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 6/11.

  • 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 $1,263). 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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See prices for flight routes from nearby airports that may be better suited for you.

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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 3,080,152 searches. Data last updated June 11, 2024.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$694Average$1,099FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$726Average$1,167FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$825Average$1,438FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$897Average$1,085FlexibilityNo cancel feeOn-time67%
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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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