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 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 50% 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.

$416 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

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Enter your travel dates to find the best prices.

9:22 am - 4:25 pmSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

24h 03m2 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

$772United Airlines

Wed, Feb 10 - Fri, Feb 12

9:22 am - 9:20 pmSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

28h 58m2 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

$772United Airlines

Tue, Feb 9 - Fri, Feb 12

9:22 am - 4:25 pmSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

24h 03m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:40 am - 9:13 pmBUD Budapest Ferenc Liszt Intl-STL Lambert-St Louis

21h 33m2 stops Frankfurt am Main Chicago O'Hare Intl

$781United Airlines

Wed, Feb 10 - Fri, Feb 12

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

12h 20m1 stop Frankfurt am Main

6:40 am - 3:26 pmBUD Budapest Ferenc Liszt Intl-STL Lambert-St Louis

15h 46m2 stops Frankfurt am Main Toronto Pearson Intl

$871Multiple Airlines

Fri, Mar 5 - Sat, Mar 13

3:40 pm - 1:40 pmSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

15h 00m1 stop Frankfurt am Main

6:35 pm - 1:45 pmBUD Budapest Ferenc Liszt Intl-STL Lambert-St Louis

26h 10m1 stop Frankfurt am Main

$888Lufthansa

Fri, Mar 5 - Sat, Mar 13

4:05 pm - 2:05 pmSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

15h 00m2 stops Toronto Pearson Intl Zurich

6:40 am - 7:29 pmBUD Budapest Ferenc Liszt Intl-STL Lambert-St Louis

19h 49m3 stops Frankfurt am Main Toronto Pearson Intl Chicago O'Hare Intl

$895Air Canada

Fri, Mar 5 - Sat, Mar 13

10:14 am - 11:50 amSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

18h 36m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

1:25 pm - 11:54 pmBUD Budapest Ferenc Liszt Intl-STL Lambert-St Louis

16h 29m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$943Delta

Sun, Oct 18 - Sun, Oct 25

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

15h 00m1 stop Frankfurt am Main

6:40 am - 2:45 pmBUD Budapest Ferenc Liszt Intl-STL Lambert-St Louis

14h 05m1 stop Frankfurt am Main

$968Lufthansa

Sun, Oct 18 - Sun, Oct 25

1:51 pm - 5:20 pmSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

20h 29m2 stops Chicago O'Hare Intl London Heathrow

8:10 pm - 5:07 pmBUD Budapest Ferenc Liszt Intl-STL Lambert-St Louis

27h 57m2 stops London Heathrow Chicago O'Hare Intl

$1,027British Airways

Tue, Dec 22 - Tue, Jan 5

4:32 pm - 11:00 pmSTL Lambert-St Louis-BUD Budapest Ferenc Liszt Intl

23h 28m2 stops Chicago O'Hare Intl London Heathrow

8:10 pm - 5:07 pmBUD Budapest Ferenc Liszt Intl-STL Lambert-St Louis

27h 57m2 stops London Heathrow Chicago O'Hare Intl

$1,027British Airways

Tue, Dec 22 - Tue, Jan 5

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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

Feb 10

STL9:22 amLambert-St Louis

24h 03m

2 stops

BUD4:25 pmBudapest Ferenc Liszt Intl

Feb 12

BUD6:40 amBudapest Ferenc Liszt Intl

14h 05m

1 stop

STL1:45 pmLambert-St Louis

$772

United Airlines

Feb 10

STL9:22 amLambert-St Louis

24h 03m

2 stops

BUD4:25 pmBudapest Ferenc Liszt Intl

Feb 12

BUD6:40 amBudapest Ferenc Liszt Intl

21h 33m

2 stops

STL9:13 pmLambert-St Louis

$781

United Airlines

Feb 10

STL9:22 amLambert-St Louis

24h 03m

2 stops

BUD4:25 pmBudapest Ferenc Liszt Intl

Feb 12

BUD6:40 amBudapest Ferenc Liszt Intl

21h 33m

2 stops

STL9:13 pmLambert-St Louis

$782

Lufthansa flights from St. Louis to Budapest

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

Lufthansa

Mar 5

STL3:40 pmLambert-St Louis

15h 00m

1 stop

BUD1:40 pmBudapest Ferenc Liszt Intl

Mar 13

BUD6:35 pmBudapest Ferenc Liszt Intl

26h 10m

1 stop

STL1:45 pmLambert-St Louis

$888

Lufthansa

Oct 18

STL3:30 pmLambert-St Louis

15h 00m

1 stop

BUD1:30 pmBudapest Ferenc Liszt Intl

Oct 25

BUD6:40 amBudapest Ferenc Liszt Intl

14h 05m

1 stop

STL2:45 pmLambert-St Louis

$968

Lufthansa

Dec 22

STL4:05 pmLambert-St Louis

42h 45m

2 stops

BUD5:50 pmBudapest Ferenc Liszt Intl

Jan 6

BUD6:40 amBudapest Ferenc Liszt Intl

14h 05m

1 stop

STL1:45 pmLambert-St Louis

$1,123

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

Wed 2/10

9:22 am-4:25 pm

2 stops24h 03m

Budapest Ferenc Liszt Intl

Fri 2/12

6:40 am-1:45 pm

1 stop14h 05m

$772

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Tue 2/9

9:22 am-9:20 pm

2 stops28h 58m

Budapest Ferenc Liszt Intl

Fri 2/12

6:40 am-1:45 pm

1 stop14h 05m

$772

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Wed 2/10

9:22 am-4:25 pm

2 stops24h 03m

Budapest Ferenc Liszt Intl

Fri 2/12

6:40 am-9:13 pm

2 stops21h 33m

$781

Quickest round-trip

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Fri 3/5

3:40 pm-11:00 am

1 stop12h 20m

Budapest Ferenc Liszt Intl

Sat 3/13

6:40 am-3:26 pm

2 stops15h 46m

$871

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Fri 3/5

3:40 pm-1:40 pm

1 stop15h 00m

Budapest Ferenc Liszt Intl

Sat 3/13

6:35 pm-1:45 pm

1 stop26h 10m

$888

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Fri 3/5

4:05 pm-2:05 pm

2 stops15h 00m

Budapest Ferenc Liszt Intl

Sat 3/13

6:40 am-7:29 pm

3 stops19h 49m

$895

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Sun 10/18

10:14 am-11:50 am

2 stops18h 36m

Budapest Ferenc Liszt Intl

Sun 10/25

1:25 pm-11:54 pm

2 stops16h 29m

$943

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Sun 10/18

3:30 pm-1:30 pm

1 stop15h 00m

Budapest Ferenc Liszt Intl

Sun 10/25

6:40 am-2:45 pm

1 stop14h 05m

$968

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Tue 12/22

1:51 pm-5:20 pm

2 stops20h 29m

Budapest Ferenc Liszt Intl

Tue 1/5

8:10 pm-5:07 pm

2 stops27h 57m

$1,027

St. LouisBudapest

STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl

STLBUD

Lambert-St Louis

Tue 12/22

4:32 pm-11:00 pm

2 stops23h 28m

Budapest Ferenc Liszt Intl

Tue 1/5

8:10 pm-5:07 pm

2 stops27h 57m

$1,027

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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 $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 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	$416
Fastest flight time	28h 58m
Direct flights	None

The best one-way flight to Budapest from St. Louis in the past 72 hours is $416. The best round-trip flight deal from St. Louis to Budapest found on momondo in the last 72 hours is $772.

The fastest flight from St. Louis to Budapest takes 28h 58m

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 28h 58m.
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 50% of the total bookings. Other popular airlines include United Airlines with 31% and British Airways with 19%.

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 8,219 reviews	Search Lufthansa flights
United Airlines	PriceFrom $578	Free Cancellation	Rating 7.4 10,177 reviews	Search United Airlines flights
British Airways	PriceFrom $825	Free Cancellation	Rating 6.7 8,209 reviews	Search British Airways flights

Siófok

Szeged

Eger

Kecskemét

Szentendre

Why use momondo?

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.

An easier way to manage your Budapest trip

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Cheap flights from St. Louis to Budapest from $416

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 10/3. 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

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Our best Lufthansa 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 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

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Hungary

Airports servicing Hungary

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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