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$319+ 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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BUD
Mar 15 — Mar 221
Sun 3/15
Sun 3/22
1 adult, Economy
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Cheap 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 February 13, 2026.

This Air Canada deal was found by Cheapflights users on 2/11. 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.
Mon 4/134:05 pm
STL
-
BUD
2 stops17h 45m
Air Canada
Wed 5/65:55 am
BUD
-
STL
2 stops21h 10m
Air Canada
Deal found 2/11$567
This United Airlines deal was found by Cheapflights users on 2/11. 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.
Mon 4/137:45 am
STL
-
BUD
2 stops22h 40m
United Airlines
Fri 5/15:55 am
BUD
-
STL
1 stop14h 30m
United Airlines
Deal found 2/11$572
This United Airlines deal was found by Cheapflights users on 2/11. 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.
Tue 4/1411:15 am
STL
-
BUD
2 stops16h 40m
United Airlines
Wed 5/65:55 am
BUD
-
STL
2 stops21h 10m
United Airlines
Deal found 2/11$575
This United Airlines deal was found by Cheapflights users on 2/11. 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 4/154:05 pm
STL
-
BUD
2 stops19h 35m
United Airlines
Fri 5/15:55 am
BUD
-
STL
1 stop14h 30m
United Airlines
Deal found 2/11$576
This Air Canada deal was found by Cheapflights users on 2/11. 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 4/154:05 pm
STL
-
BUD
2 stops19h 35m
Air Canada
Tue 5/55:55 am
BUD
-
STL
2 stops21h 10m
Air Canada
Deal found 2/11$579
This United Airlines deal was found by Cheapflights users on 2/11. 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.
Mon 4/139:10 am
STL
-
BUD
2 stops21h 15m
United Airlines
Thu 4/306:35 am
BUD
-
STL
2 stops21h 33m
United Airlines
Deal found 2/11$583
This Air Canada deal was found by Cheapflights users on 2/11. 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.
Mon 4/134:05 pm
STL
-
BUD
2 stops17h 45m
Air Canada
Mon 5/42:10 pm
BUD
-
STL
2 stops36h 55m
Air Canada
Deal found 2/11$587
This United Airlines deal was found by Cheapflights users on 2/11. 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.
Tue 4/1411:15 am
STL
-
BUD
2 stops16h 40m
United Airlines
Tue 5/52:25 pm
BUD
-
STL
1 stop30h 00m
United Airlines
Deal found 2/11$593
This FlightHub deal was found by Cheapflights users on 2/11. 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.
Tue 4/144:05 pm
STL
-
BUD
2 stops19h 10m
Multiple Airlines
Mon 5/411:15 am
BUD
-
STL
2 stops39h 50m
Multiple Airlines
Deal found 2/11$594
This United Airlines deal was found by Cheapflights users on 2/11. 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 4/154:05 pm
STL
-
BUD
2 stops19h 35m
United Airlines
Tue 5/52:25 pm
BUD
-
STL
1 stop30h 00m
United Airlines
Deal found 2/11$597

Find 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 February 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$567
(Air Canada)

One-way from

$319
(Kiwi.com)

Popular in

June

Cheapest in

October
Provider with most accurate pricing for Lambert-St Louis-Budapest Ferenc Liszt Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Budapest Ferenc Liszt Intl flights.
Search Deals
From Lambert-St Louis to Budapest Ferenc Liszt Intl
Search Deals
One-way flight from Lambert-St Louis to Budapest Ferenc Liszt Intl
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($208 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($67 potential savings vs. average RT price).
Search Deals

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 February 13, 2026.
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

Mon 4/13

7:45 am-1:25 pm

2 stops22h 40m

Budapest Ferenc Liszt Intl

Fri 5/1

5:55 am-1:25 pm

1 stop14h 30m

$572

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Tue 4/14

11:15 am-10:55 am

2 stops16h 40m

Budapest Ferenc Liszt Intl

Wed 5/6

5:55 am-8:05 pm

2 stops21h 10m

$575

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 4/15

4:05 pm-6:40 pm

2 stops19h 35m

Budapest Ferenc Liszt Intl

Fri 5/1

5:55 am-1:25 pm

1 stop14h 30m

$576

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Tue 4/14

11:15 am-6:15 pm

2 stops24h 00m

Budapest Ferenc Liszt Intl

Fri 5/1

5:55 am-8:04 pm

2 stops21h 09m

$580

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 4/15

4:05 pm-6:40 pm

2 stops19h 35m

Budapest Ferenc Liszt Intl

Thu 4/30

6:35 am-9:08 pm

2 stops21h 33m

$587

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Tue 4/14

8:30 am-10:55 am

2 stops19h 25m

Budapest Ferenc Liszt Intl

Thu 4/30

2:25 pm-1:25 pm

1 stop30h 00m

$593

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 4/15

4:05 pm-6:40 pm

2 stops19h 35m

Budapest Ferenc Liszt Intl

Tue 5/5

2:25 pm-1:25 pm

1 stop30h 00m

$597

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Mon 4/13

7:45 am-10:35 am

2 stops19h 50m

Budapest Ferenc Liszt Intl

Tue 5/5

2:25 pm-1:25 pm

1 stop30h 00m

$600

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Mon 4/13

7:45 am-10:35 am

2 stops19h 50m

Budapest Ferenc Liszt Intl

Thu 4/30

2:25 pm-1:25 pm

1 stop30h 00m

$600

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 4/15

4:05 pm-6:40 pm

2 stops19h 35m

Budapest Ferenc Liszt Intl

Sun 5/3

5:55 am-1:25 pm

1 stop14h 30m

$605

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

Showing 1-10 of 22 results
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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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*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.

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 February 13, 2026.
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
9,287 reviews

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,287 reviews
United Airlines
7.4
Good
9,287 reviews

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Lufthansa
6.8
Okay
7,784 reviews
United Airlines
7.4
Good
9,287 reviews

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 $572, United Airlines can have you in Budapest from St. Louis in 22h 40m. 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 $468, Lufthansa will fly you from St. Louis to Budapest and back. In addition to Lufthansa, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $578. Users have found that Lufthansa is 48% 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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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.
Kansas City to Budapest flights
Springfield to Budapest flights

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 February 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$468Average$900FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$578Average$1,025FlexibilityNo cancel feeOn-time69%

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