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

Frankfurt am Main (FRA) was the most common stop: 91% of momondo users choosing 1-stop flights on this route connected there.

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

Flights connecting via London (LHR) have the shortest average one-way travel time: 12h 15m.

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?

Aer Lingus and Air Canada are the most popular carriers operating from Lambert-St Louis to Budapest Ferenc Liszt Intl

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 49% 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 layover airport offers the lowest fares from St. Louis to Budapest?

Flights via London (LHR) offer the lowest average round-trip price of $886.

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 September 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.

$306 Cheap Flights from St. Louis to Budapest in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Budapest

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

10:21 am - 11:25 amSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

18h 04m2 stops Dallas/Fort Worth London Heathrow

7:50 am - 9:59 pmBUD Budapest Ferenc Liszt Intl-STL Lambert-St Louis

21h 09m2 stops London Heathrow Dallas/Fort Worth

$628American Airlines

Tue, Nov 3 - Tue, Nov 10

6:05 pm - 5:10 pmSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

16h 05m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

1:55 pm - 12:05 amBUD Budapest Ferenc Liszt Intl-STL Lambert-St Louis

17h 10m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$661Delta

Tue, Dec 1 - Tue, Dec 8

4:05 pm - 7:10 pmSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

20h 05m2 stops Toronto Pearson Intl Zurich

2:25 pm - 1:45 pmBUD Budapest Ferenc Liszt Intl-STL Lambert-St Louis

30h 20m1 stop Frankfurt am Main

$673Multiple Airlines

Tue, Dec 1 - Tue, Dec 8

6:50 pm - 4:25 pmSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

14h 35m2 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

$679Lufthansa

Sun, Nov 8 - Sun, Nov 15

3:40 pm - 11:00 amSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

12h 20m1 stop Frankfurt am Main

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

14h 05m1 stop Frankfurt am Main

$696Lufthansa

Fri, Nov 6 - Fri, Nov 13

3:40 pm - 11:00 amSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

12h 20m1 stop Frankfurt am Main

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

14h 05m1 stop Frankfurt am Main

$696Lufthansa

Sun, Nov 8 - Sun, Nov 15

2:54 pm - 5:45 pmSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

19h 51m2 stops Dallas/Fort Worth London Heathrow

12:10 pm - 11:58 pmBUD Budapest Ferenc Liszt Intl-STL Lambert-St Louis

18h 48m2 stops London Heathrow Chicago O'Hare Intl

$724British Airways

Fri, Mar 5 - Sat, Mar 13

11:34 am - 5:45 pmSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

23h 11m2 stops Boston Logan Intl London Heathrow

7:05 am - 10:34 pmBUD Budapest Ferenc Liszt Intl-STL Lambert-St Louis

22h 29m2 stops London Heathrow Dallas/Fort Worth

$732British Airways

Fri, Mar 5 - Sun, Mar 14

9:22 am - 2:05 pmSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

21h 43m2 stops Chicago O'Hare Intl Zurich

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

14h 05m1 stop Frankfurt am Main

$738United Airlines

Wed, Feb 10 - Fri, Feb 12

9:22 am - 2:05 pmSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

21h 43m2 stops Chicago O'Hare Intl Zurich

10:00 am - 11:19 pmBUD Budapest Ferenc Liszt Intl-STL Lambert-St Louis

20h 19m2 stops Frankfurt am Main Chicago O'Hare Intl

$747United Airlines

Wed, Feb 10 - Fri, Feb 12

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American Airlines flights from St. Louis to Budapest

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

American Airlines

Nov 6

STL5:29 pmLambert-St Louis

17h 16m

2 stops

BUD5:45 pmBudapest Ferenc Liszt Intl

Nov 13

BUD6:50 amBudapest Ferenc Liszt Intl

20h 36m

2 stops

STL8:26 pmLambert-St Louis

$678

American Airlines

Sep 25

STL11:09 amLambert-St Louis

14h 01m

1 stop

BUD8:10 amBudapest Ferenc Liszt Intl

Sep 27

BUD10:05 amBudapest Ferenc Liszt Intl

14h 00m

1 stop

STL5:05 pmLambert-St Louis

$1,144

American Airlines

Sep 25

STL11:09 amLambert-St Louis

14h 01m

1 stop

BUD8:10 amBudapest Ferenc Liszt Intl

Sep 27

BUD10:05 amBudapest Ferenc Liszt Intl

16h 25m

2 stops

STL7:30 pmLambert-St Louis

$1,148

British Airways flights from St. Louis to Budapest

Our best British Airways deals on St. Louis to Budapest flight tickets

British Airways

Mar 5

STL2:54 pmLambert-St Louis

19h 51m

2 stops

BUD5:45 pmBudapest Ferenc Liszt Intl

Mar 13

BUD12:10 pmBudapest Ferenc Liszt Intl

18h 48m

2 stops

STL11:58 pmLambert-St Louis

$724

British Airways

Dec 15

STL9:50 amLambert-St Louis

30h 10m

2 stops

BUD11:00 pmBudapest Ferenc Liszt Intl

Dec 22

BUD8:10 pmBudapest Ferenc Liszt Intl

33h 12m

2 stops

STL10:22 pmLambert-St Louis

$821

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

Tue 11/3

10:21 am-11:25 am

2 stops18h 04m

Budapest Ferenc Liszt Intl

Tue 11/10

7:50 am-9:59 pm

2 stops21h 09m

$628

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Tue 12/1

6:05 pm-5:10 pm

2 stops16h 05m

Budapest Ferenc Liszt Intl

Tue 12/8

1:55 pm-12:05 am

2 stops17h 10m

$661

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Tue 12/1

4:05 pm-7:10 pm

2 stops20h 05m

Budapest Ferenc Liszt Intl

Tue 12/8

2:25 pm-1:45 pm

1 stop30h 20m

$673

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Sun 11/8

6:50 pm-4:25 pm

2 stops14h 35m

Budapest Ferenc Liszt Intl

Sun 11/15

6:40 am-1:45 pm

1 stop14h 05m

$679

Quickest round-trip

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Fri 11/6

3:40 pm-11:00 am

1 stop12h 20m

Budapest Ferenc Liszt Intl

Fri 11/13

6:40 am-1:45 pm

1 stop14h 05m

$696

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Sun 11/8

3:40 pm-11:00 am

1 stop12h 20m

Budapest Ferenc Liszt Intl

Sun 11/15

6:40 am-1:45 pm

1 stop14h 05m

$696

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Fri 3/5

2:54 pm-5:45 pm

2 stops19h 51m

Budapest Ferenc Liszt Intl

Sat 3/13

12:10 pm-11:58 pm

2 stops18h 48m

$724

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Fri 3/5

11:34 am-5:45 pm

2 stops23h 11m

Budapest Ferenc Liszt Intl

Sun 3/14

7:05 am-10:34 pm

2 stops22h 29m

$732

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Wed 2/10

9:22 am-2:05 pm

2 stops21h 43m

Budapest Ferenc Liszt Intl

Fri 2/12

6:40 am-1:45 pm

1 stop14h 05m

$738

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Wed 2/10

9:22 am-2:05 pm

2 stops21h 43m

Budapest Ferenc Liszt Intl

Fri 2/12

10:00 am-11:19 pm

2 stops20h 19m

$747

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 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 $634, 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 14% 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

Best Price Found	$306
Fastest flight time	14h 35m
Direct flights	None

The best one-way flight to Budapest from St. Louis in the past 72 hours is $306. The best round-trip flight deal from St. Louis to Budapest found on momondo in the last 72 hours is $628.

The fastest flight from St. Louis to Budapest takes 14h 35m

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 35m.
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 September 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 49% of the total bookings. Other popular airlines include United Airlines with 30% and British Airways with 20%.

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 8,235 reviews	Search Lufthansa flights
United Airlines	PriceFrom $578	Free Cancellation	Rating 7.4 10,233 reviews	Search United Airlines flights
British Airways	PriceFrom $825	Free Cancellation	Rating 6.7 8,227 reviews	Search British Airways flights

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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 $306

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 10/16. 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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American Airlines flights from St. Louis to Budapest

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

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Our best British Airways deals on St. Louis to Budapest flight tickets

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

Best Price Found

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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

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Find better results for your trip to Hungary

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

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