Which layover airport has the shortest travel time from St. Louis to Budapest?

Flights connecting via Frankfurt am Main (FRA) have the shortest average one-way travel time: 13h 29m.

What airlines fly to Budapest?

Lufthansa, United Airlines and British Airways are the top three most popular airlines that fly to Budapest from St. Louis according to our data. Lufthansa is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Budapest. Keep in mind that there are 3 different airlines that fly to Budapest on a routine basis, so you have a few additional options to choose from.

Which airport is the most popular layover for flights between St. Louis and Budapest?

Frankfurt am Main (FRA) was the most common stop: 95% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from St. Louis to Budapest?

Flights via Frankfurt am Main (FRA) offer the lowest average round-trip price of $964.

Which layover airport has the shortest connection time from St. Louis to Budapest?

Philadelphia (PHL) has the shortest average layover time for this route: 2h 13m.

What is the cheapest airline that flies from Lambert-St Louis to Budapest Ferenc Liszt Intl?

Lufthansa and United Airlines are the most popular carriers operating from Lambert-St Louis to Budapest Ferenc Liszt Intl

When did momondo last update prices for flights from Lambert-St Louis Airport to Budapest Ferenc Liszt Intl Airport?

Prices for flights from Lambert-St Louis Airport to Budapest Ferenc Liszt Intl Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Lambert-St Louis Airport to Budapest Ferenc Liszt Intl Airport?

As of August 2026, there are 3 operators available to choose from for flights from Lambert-St Louis Airport to Budapest Ferenc Liszt Intl Airport.

How old do you have to be to fly from Lambert-St Louis Airport to Budapest Ferenc Liszt Intl Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Budapest Ferenc Liszt Intl Airport.

What documentation or ID do you need to fly to Budapest Ferenc Liszt Intl Airport?

The travel and health documents required for your trip to Budapest Ferenc Liszt Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Budapest Ferenc Liszt Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$455 Cheap Flights from St. Louis to Budapest in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Budapest

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:40 am - 12:40 pmSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

20h 00m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:40 am - 1:45 pmBUD Budapest Ferenc Liszt Intl-STL Lambert-St Louis

14h 05m1 stop Frankfurt am Main

$767United Airlines

Mon, Jan 11 - Wed, Jan 13

3:15 pm - 12:40 pmSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

14h 25m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

10:00 am - 11:09 pmBUD Budapest Ferenc Liszt Intl-STL Lambert-St Louis

20h 09m2 stops Frankfurt am Main Chicago O'Hare Intl

$776United Airlines

Mon, Jan 11 - Wed, Jan 13

2:40 pm - 8:55 amSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

35h 15m2 stops Toronto Pearson Intl Zurich

5:55 am - 1:25 pmBUD Budapest Ferenc Liszt Intl-STL Lambert-St Louis

14h 30m1 stop Frankfurt am Main

$845Multiple Airlines

Sun, Sep 13 - Tue, Sep 22

9:40 pm - 10:50 amSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

30h 10m1 stop London Heathrow

10:05 am - 9:44 pmBUD Budapest Ferenc Liszt Intl-STL Lambert-St Louis

18h 39m1 stop Philadelphia

$859American Airlines

Sun, Sep 13 - Tue, Sep 22

12:10 pm - 8:45 amSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

13h 35m2 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main

6:35 am - 8:20 pmBUD Budapest Ferenc Liszt Intl-STL Lambert-St Louis

20h 45m2 stops Brussels Bruxelles-National Toronto Pearson Intl

$863Air Canada

Sun, Sep 13 - Tue, Sep 22

6:53 pm - 4:50 pmSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

14h 57m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

5:55 am - 1:25 pmBUD Budapest Ferenc Liszt Intl-STL Lambert-St Louis

14h 30m1 stop Frankfurt am Main

$904Lufthansa

Mon, Sep 7 - Sun, Sep 20

3:30 pm - 1:25 pmSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

14h 55m1 stop Frankfurt am Main

5:55 am - 1:25 pmBUD Budapest Ferenc Liszt Intl-STL Lambert-St Louis

14h 30m1 stop Frankfurt am Main

$908Lufthansa

Mon, Sep 7 - Sun, Sep 20

9:35 pm - 12:10 amSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

19h 35m1 stop London Heathrow

10:05 am - 9:44 pmBUD Budapest Ferenc Liszt Intl-STL Lambert-St Louis

18h 39m1 stop Philadelphia

$909British Airways

Wed, Sep 23 - Wed, Sep 30

9:40 am - 9:15 amSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

16h 35m2 stops Chicago O'Hare Intl Frankfurt am Main

6:40 am - 1:45 pmBUD Budapest Ferenc Liszt Intl-STL Lambert-St Louis

14h 05m1 stop Frankfurt am Main

$934United Airlines

Mon, Dec 14 - Sun, Dec 27

1:25 pm - 2:05 pmSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

17h 40m2 stops Chicago O'Hare Intl London Heathrow

12:05 pm - 12:27 amBUD Budapest Ferenc Liszt Intl-STL Lambert-St Louis

19h 22m2 stops Helsinki-Vantaa Chicago O'Hare Intl

$975British Airways

Tue, Sep 1 - Wed, Sep 9

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United Airlines flights from St. Louis to Budapest

Our best United Airlines deals on St. Louis to Budapest flight tickets

United Airlines

Jan 11

STL9:40 amLambert-St Louis

20h 00m

2 stops

BUD12:40 pmBudapest Ferenc Liszt Intl

Jan 13

BUD6:40 amBudapest Ferenc Liszt Intl

14h 05m

1 stop

STL1:45 pmLambert-St Louis

$767

United Airlines

Jan 11

STL3:15 pmLambert-St Louis

14h 25m

2 stops

BUD12:40 pmBudapest Ferenc Liszt Intl

Jan 13

BUD10:00 amBudapest Ferenc Liszt Intl

20h 09m

2 stops

STL11:09 pmLambert-St Louis

$776

United Airlines

Dec 14

STL9:40 amLambert-St Louis

16h 35m

2 stops

BUD9:15 amBudapest Ferenc Liszt Intl

Dec 27

BUD6:40 amBudapest Ferenc Liszt Intl

14h 05m

1 stop

STL1:45 pmLambert-St Louis

$934

Iberia flights from St. Louis to Budapest

Our best Iberia deals on St. Louis to Budapest flight tickets

Iberia

Sep 26

STL5:18 pmLambert-St Louis

38h 32m

2 stops

BUD2:50 pmBudapest Ferenc Liszt Intl

Oct 3

BUD8:50 pmBudapest Ferenc Liszt Intl

43h 39m

2 stops

STL9:29 amLambert-St Louis

$1,012

Iberia

Sep 1

STL11:22 amLambert-St Louis

13h 48m

1 stop

BUD8:10 amBudapest Ferenc Liszt Intl

Sep 9

BUD10:05 amBudapest Ferenc Liszt Intl

18h 39m

1 stop

STL9:44 pmLambert-St Louis

$1,026

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Mon 1/11

9:40 am-12:40 pm

2 stops20h 00m

Budapest Ferenc Liszt Intl

Wed 1/13

6:40 am-1:45 pm

1 stop14h 05m

$767

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Mon 1/11

3:15 pm-12:40 pm

2 stops14h 25m

Budapest Ferenc Liszt Intl

Wed 1/13

10:00 am-11:09 pm

2 stops20h 09m

$776

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Sun 9/13

2:40 pm-8:55 am

2 stops35h 15m

Budapest Ferenc Liszt Intl

Tue 9/22

5:55 am-1:25 pm

1 stop14h 30m

$845

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Sun 9/13

9:40 pm-10:50 am

1 stop30h 10m

Budapest Ferenc Liszt Intl

Tue 9/22

10:05 am-9:44 pm

1 stop18h 39m

$859

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Sun 9/13

12:10 pm-8:45 am

2 stops13h 35m

Budapest Ferenc Liszt Intl

Tue 9/22

6:35 am-8:20 pm

2 stops20h 45m

$863

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Mon 9/7

6:53 pm-4:50 pm

2 stops14h 57m

Budapest Ferenc Liszt Intl

Sun 9/20

5:55 am-1:25 pm

1 stop14h 30m

$904

Quickest round-trip

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Mon 9/7

3:30 pm-1:25 pm

1 stop14h 55m

Budapest Ferenc Liszt Intl

Sun 9/20

5:55 am-1:25 pm

1 stop14h 30m

$908

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Wed 9/23

9:35 pm-12:10 am

1 stop19h 35m

Budapest Ferenc Liszt Intl

Wed 9/30

10:05 am-9:44 pm

1 stop18h 39m

$909

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Mon 12/14

9:40 am-9:15 am

2 stops16h 35m

Budapest Ferenc Liszt Intl

Sun 12/27

6:40 am-1:45 pm

1 stop14h 05m

$934

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Tue 9/1

1:25 pm-2:05 pm

2 stops17h 40m

Budapest Ferenc Liszt Intl

Wed 9/9

12:05 pm-12:27 am

2 stops19h 22m

$975

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Budapest

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between St. Louis and Budapest?

Prices are currently low for flights on this route.

Typical prices usually range from $832 to $1,563.
The lowest price recently found on this route was $767.

What is the cheapest month to fly to Budapest?

The cheapest month to fly to Budapest from St. Louis is in October. Flight prices, which tend to average around $616, are often lower during this time because this is during the off-season. The month of November is another great option to travel to Budapest, with average flight prices from St. Louis averaging around $712.

Can stopping save me money on St. Louis to Budapest flights?

You could potentially save up to 12% on your flight if you consider stops on a St. Louis to Budapest flight.

When to book flights from St. Louis to Budapest

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Budapest according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap St. Louis to Budapest (STL to BUD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Budapest

Fastest flight time	14h 21m
Direct flights	None

The fastest flight from St. Louis to Budapest takes 14h 21m

There are no direct flights from St. Louis to Budapest. There are no popular flight routes from St. Louis to Budapest.

Search flight deals

Frequently asked questions about flying from St. Louis to Budapest

How far is Lambert-St Louis to Budapest Ferenc Liszt Intl by plane?
The straight-line distance from Lambert-St Louis to Budapest Ferenc Liszt Intl is 5065.8 mi. A reasonable flight in good conditions will take 14h 21m.
When did momondo last update prices for flights from Lambert-St Louis Airport to Budapest Ferenc Liszt Intl Airport?
Prices for flights from Lambert-St Louis Airport to Budapest Ferenc Liszt Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Lambert-St Louis Airport to Budapest Ferenc Liszt Intl Airport?
As of August 2026, there are 3 operators available to choose from for flights from Lambert-St Louis Airport to Budapest Ferenc Liszt Intl Airport.
How old do you have to be to fly from Lambert-St Louis Airport to Budapest Ferenc Liszt Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Budapest Ferenc Liszt Intl Airport.
What documentation or ID do you need to fly to Budapest Ferenc Liszt Intl Airport?
The travel and health documents required for your trip to Budapest Ferenc Liszt Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Budapest Ferenc Liszt Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from St. Louis to Budapest?
Based on momondo bookings for flights between St. Louis and Budapest, the leading airline is Lufthansa, making up 51% of the total bookings. Other popular airlines include United Airlines with 31% and British Airways with 18%.

Best airlines flying from St. Louis to Budapest

Compare and see reviews for airlines that fly from St. Louis to Budapest with momondo

Airline	Rating	Free Cancellation	Price
Lufthansa	PriceFrom $468	Free Cancellation	Rating 6.8 8,182 reviews	Search Lufthansa flights
United Airlines	PriceFrom $578	Free Cancellation	Rating 7.4 10,112 reviews	Search United Airlines flights
British Airways	PriceFrom $825	Free Cancellation	Rating 6.7 8,161 reviews	Search British Airways flights

Siófok

Szeged

Eger

Kecskemét

Szentendre

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Why should I use momondo to find a flight deal from St. Louis to Budapest?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Budapest from St. Louis.

Can I find flights from St. Louis to Budapest with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for St. Louis to Budapest flights to just show those with flexible booking policies.

How can momondo help me find flights from St. Louis to Budapest?

Once you have performed a search for St. Louis to Budapest flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from St. Louis to Budapest right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Budapest now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Budapest and let you know when they change.

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Cheap flights from St. Louis to Budapest from $455

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Budapest departing on 9/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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United Airlines flights from St. Louis to Budapest

Our best United Airlines deals on St. Louis to Budapest flight tickets

Iberia flights from St. Louis to Budapest

Our best Iberia deals on St. Louis to Budapest flight tickets

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See travel insights to Budapest from

How to get the cheapest flight ticket from St. Louis to Budapest

What is the typical price of a round-trip flight between St. Louis and Budapest?

What is the cheapest month to fly to Budapest?

Can stopping save me money on St. Louis to Budapest flights?

What is the cheapest airline that flies from Lambert-St Louis to Budapest Ferenc Liszt Intl?

What airlines fly to Budapest?

Which airport is the most popular layover for flights between St. Louis and Budapest?

Which layover airport offers the lowest fares from St. Louis to Budapest?

Which layover airport has the shortest travel time from St. Louis to Budapest?

Which layover airport has the shortest connection time from St. Louis to Budapest?

When to book flights from St. Louis to Budapest

Cheap St. Louis to Budapest (STL to BUD) flight deals and tips

Fastest flight time

Direct flights

Frequently asked questions about flying from St. Louis to Budapest

Best airlines flying from St. Louis to Budapest

Compare and see reviews for airlines that fly from St. Louis to Budapest with momondo

Traveling to a place near Budapest?

Why use momondo?

An easier way to manage your Budapest trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Hungary

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Fly your favorite airline to Budapest

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Budapest

List of cabin classes available on flights landing in Budapest. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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