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$490+ Cheap flights from St. Louis (STL) to Budapest (BUD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BUD
Oct 29 — Nov 51
Wed 10/29
Wed 11/5
1 adult, Economy
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Cheap flight deals from St. Louis to Budapest

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Budapest (BUD). 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 September 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$607
(Mytrip)

One-way from

$490
(Air Canada)

Popular in

June

Cheapest in

February

Average price

$1,069
Provider with most accurate pricing for Lambert-St Louis-Budapest Ferenc Liszt Intl flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Budapest Ferenc Liszt Intl flights.
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From Lambert-St Louis to Budapest Ferenc Liszt Intl
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One-way flight from Lambert-St Louis to Budapest Ferenc Liszt Intl
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Highest demand for flights based on searches. 19% potential increase in price ($262 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from St. Louis to Budapest

Cheapest flights from St. Louis to Budapest
Explore the most affordable flight options available from St. Louis to Budapest. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2025.

This Mytrip deal was found by Cheapflights users on 9/27. 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.
Wed 11/124:05 pmSTL - BUD
2 stops18h 40mMultiple Airlines
Wed 11/196:20 amBUD - STL
1 stop14h 35mMultiple Airlines
Deal found 9/27$607
This Booking.com deal was found by Cheapflights users on 9/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/123:50 pmSTL - BUD
1 stop14h 50mLufthansa
Wed 11/196:20 amBUD - STL
1 stop14h 35mLufthansa
Deal found 9/27$609
This Priceline deal was found by Cheapflights users on 9/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1211:50 amSTL - BUD
2 stops27h 10mBritish Airways
Sun 12/216:45 pmBUD - STL
2 stops29h 01mBritish Airways
Deal found 9/27$786
This Ovago deal was found by Cheapflights users on 9/27. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/15:09 pmSTL - BUD
2 stops36h 11mBritish Airways
Sat 11/1512:00 pmBUD - STL
2 stops17h 58mBritish Airways
Deal found 9/27$893
This Ovago deal was found by Cheapflights users on 9/27. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/126:42 pmSTL - BUD
2 stops21h 23mLufthansa
Sun 12/216:20 amBUD - STL
1 stop14h 35mLufthansa
Deal found 9/27$951
This Air Canada deal was found by Cheapflights users on 9/27. 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.
Sat 11/14:05 pmSTL - BUD
2 stops35h 15mMultiple Airlines
Sat 11/1510:05 amBUD - STL
3 stops19h 40mMultiple Airlines
Deal found 9/27$1,306
This FlightHub deal was found by Cheapflights users on 9/27. 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.
Sat 11/16:43 pmSTL - BUD
2 stops15h 32mLufthansa
Sat 11/156:45 pmBUD - STL
1 stop26h 10mLufthansa
Deal found 9/27$1,615
This Air Canada deal was found by Cheapflights users on 9/27. 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.
Fri 12/124:05 pmSTL - BUD
2 stops15h 00mAir Canada
Sun 12/2110:05 amBUD - STL
3 stops19h 38mAir Canada
Deal found 9/27$1,711
This Air Canada deal was found by Cheapflights users on 9/27. 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.
Wed 11/124:05 pmSTL - BUD
2 stops18h 40mAir Canada
Wed 11/196:20 amBUD - STL
3 stops22h 20mAir Canada
Deal found 9/27$2,561

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Budapest 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 September 29, 2025.
Use the filters below to find and compare flights from St. Louis to Budapest that are best for you.

Fly from

St. Louis

Fly to

Budapest

Route

Depart

Return

Price

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 11/12

4:05 pm-5:45 pm

2 stops18h 40m

Budapest Ferenc Liszt Intl

Wed 11/19

6:20 am-1:55 pm

1 stop14h 35m

$607

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Fri 3/27

4:50 pm-11:35 am

1 stop12h 45m

Budapest Ferenc Liszt Intl

Tue 3/31

9:25 am-3:24 pm

2 stops36h 59m

$670

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Fri 3/27

4:50 pm-1:50 pm

1 stop15h 00m

Budapest Ferenc Liszt Intl

Tue 3/31

7:05 pm-1:30 pm

1 stop25h 25m

$685

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Fri 12/12

11:50 am-10:00 pm

2 stops27h 10m

Budapest Ferenc Liszt Intl

Sun 12/21

6:45 pm-4:46 pm

2 stops29h 01m

$786

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sat 11/1

4:05 pm-9:20 am

2 stops35h 15m

$490

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sat 11/1

4:05 pm-9:20 am

2 stops35h 15m

$490

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/27

Compare providers for flights from St. Louis to Budapest

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 Budapest in September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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-Budapest flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Budapest flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Budapest flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Budapest flights, Cheapflights users trust FlightHub the most. FlightHub 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-Budapest 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 Budapest

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

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

Currently, November is the cheapest month in which you can book a flight from St. Louis to Budapest (average of $656). Flying from St. Louis to Budapest in June is currently the most expensive (average of $1,104). 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 is the cheapest time of day to fly from STL to BUD?

Find hourly flight availability from St. Louis to Budapest. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 29, 2025.

One of the essential ways to save on airfare from St. Louis to Budapest is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 17% on airfare.

How much does it cost to fly round-trip from St. Louis to Budapest?

Reviews of airlines servicing Budapest

Get insights into the airlines that provide service to Budapest. 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 Budapest. Reviews last updated September 29, 2025.
See what other customers who have flown with United Airlines and Lufthansa from St. Louis to Budapest have to say. 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
8,924 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,924 reviews
United Airlines
7.4
Good
8,924 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
Lufthansa
6.8
Okay
7,435 reviews
United Airlines
7.4
Good
8,924 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Related info for your journey

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

  • How long is the flight from St. Louis to Budapest?

    For as low as $670, United Airlines can have you in Budapest from St. Louis in 12h 45m. The distance from St. Louis to Budapest is about 5076 mi.

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

    Currently priced at $762, United Airlines will fly you from St. Louis to Budapest and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Lufthansa for as low as $781. Users have found that United Airlines is 31% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Budapest 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 Budapest?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Budapest (average of $656). Flying from St. Louis to Budapest in June is currently the most expensive (average of $1,104). 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 Budapest

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from St. Louis to Budapest

Discover the top 2 airlines that operate flights from St. Louis to Budapest. 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 September 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$762Average$1,102FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$781Average$1,137FlexibilityNo cancel feeOn-time76%

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