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Cheap flights from St. Louis to Budapest from $473

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 5/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from St. Louis to Budapest

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
10:09 am - 4:50 pm
STL
-
BUD
23h 41m
2 stops
United Airlines Logo
5:55 am - 1:25 pm
BUD
-
STL
14h 30m
1 stop
$729United Airlines
Wed, Apr 8 - Wed, May 13
United Airlines Logo
10:09 am - 4:50 pm
STL
-
BUD
23h 41m
2 stops
United Airlines Logo
5:55 am - 8:25 pm
BUD
-
STL
21h 30m
2 stops
$732United Airlines
Wed, Apr 8 - Wed, May 13
United Airlines Logo
2:40 pm - 11:30 pm
STL
-
BUD
25h 50m
2 stops
United Airlines Logo
2:15 pm - 3:25 pm
BUD
-
STL
32h 10m
2 stops
$737United Airlines
Wed, Apr 15 - Wed, Apr 22
Delta Logo
12:28 pm - 4:30 pm
STL
-
BUD
21h 02m
2 stops
Delta Logo
6:00 am - 4:32 pm
BUD
-
STL
17h 32m
2 stops
$742Delta
Wed, Apr 1 - Wed, Apr 8
Lufthansa Logo
3:30 pm - 6:35 pm
STL
-
BUD
20h 05m
1 stop
Lufthansa Logo
5:55 am - 1:25 pm
BUD
-
STL
14h 30m
1 stop
$774Lufthansa
Sun, Apr 19 - Sun, Apr 26
Multiple Airlines Logo
4:05 pm - 5:10 pm
STL
-
BUD
42h 05m
2 stops
Multiple Airlines Logo
5:55 am - 1:25 pm
BUD
-
STL
14h 30m
1 stop
$781Multiple Airlines
Sun, Apr 19 - Sun, Apr 26
United Airlines Logo
10:00 am - 12:35 pm
STL
-
BUD
19h 35m
2 stops
United Airlines Logo
2:15 pm - 5:50 am
BUD
-
STL
22h 35m
2 stops
$789United Airlines
Fri, Apr 17 - Fri, Apr 24
Multiple Airlines Logo
6:05 pm - 11:30 pm
STL
-
BUD
22h 25m
2 stops
Multiple Airlines Logo
6:35 am - 3:48 pm
BUD
-
STL
16h 13m
2 stops
$791Multiple Airlines
Fri, Apr 17 - Fri, Apr 24
Multiple Airlines Logo
4:05 pm - 11:40 pm
STL
-
BUD
24h 35m
2 stops
Multiple Airlines Logo
6:00 am - 11:57 pm
BUD
-
STL
24h 57m
2 stops
$800Multiple Airlines
Sun, Apr 19 - Sun, Apr 26
Air Canada Logo
1:00 pm - 4:50 pm
STL
-
BUD
20h 50m
2 stops
Air Canada Logo
5:55 am - 8:25 pm
BUD
-
STL
21h 30m
2 stops
$811Air Canada
Tue, May 12 - Tue, May 19

United Airlines flights from St. Louis to Budapest

Our best United Airlines deals on St. Louis to Budapest flight tickets
United Airlines
Apr 8
STL10:09 amLambert-St Louis
23h 41m
2 stops
BUD4:50 pmBudapest Ferenc Liszt Intl
May 13
BUD5:55 amBudapest Ferenc Liszt Intl
14h 30m
1 stop
STL1:25 pmLambert-St Louis
$729
United Airlines
Apr 8
STL10:09 amLambert-St Louis
23h 41m
2 stops
BUD4:50 pmBudapest Ferenc Liszt Intl
May 13
BUD5:55 amBudapest Ferenc Liszt Intl
21h 30m
2 stops
STL8:25 pmLambert-St Louis
$732
United Airlines
Apr 15
STL2:40 pmLambert-St Louis
25h 50m
2 stops
BUD11:30 pmBudapest Ferenc Liszt Intl
Apr 22
BUD2:15 pmBudapest Ferenc Liszt Intl
32h 10m
2 stops
STL3:25 pmLambert-St Louis
$737

American Airlines flights from St. Louis to Budapest

Our best American Airlines deals on St. Louis to Budapest flight tickets
American Airlines
Sep 1
STL7:32 amLambert-St Louis
17h 38m
2 stops
BUD8:10 amBudapest Ferenc Liszt Intl
Sep 9
BUD10:05 amBudapest Ferenc Liszt Intl
20h 15m
2 stops
STL11:20 pmLambert-St Louis
$873
American Airlines
Sep 1
STL7:23 amLambert-St Louis
17h 47m
2 stops
BUD8:10 amBudapest Ferenc Liszt Intl
Sep 9
BUD10:05 amBudapest Ferenc Liszt Intl
17h 58m
2 stops
STL9:03 pmLambert-St Louis
$922
American Airlines
Jul 31
STL6:20 amLambert-St Louis
18h 50m
1 stop
BUD8:10 amBudapest Ferenc Liszt Intl
Aug 8
BUD10:05 amBudapest Ferenc Liszt Intl
20h 37m
1 stop
STL11:42 pmLambert-St Louis
$949

momondo 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, momondo users made 832,500 searches. Data last updated March 6, 2026.
Use the filters below to find and compare flights from St. Louis to Budapest that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 4/8

10:09 am-4:50 pm

2 stops23h 41m

Budapest Ferenc Liszt Intl

Wed 5/13

5:55 am-1:25 pm

1 stop14h 30m

$729

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 4/8

10:09 am-4:50 pm

2 stops23h 41m

Budapest Ferenc Liszt Intl

Wed 5/13

5:55 am-8:25 pm

2 stops21h 30m

$732

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 4/15

2:40 pm-11:30 pm

2 stops25h 50m

Budapest Ferenc Liszt Intl

Wed 4/22

2:15 pm-3:25 pm

2 stops32h 10m

$737

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 4/1

12:28 pm-4:30 pm

2 stops21h 02m

Budapest Ferenc Liszt Intl

Wed 4/8

6:00 am-4:32 pm

2 stops17h 32m

$742
Quickest round-trip

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 4/19

3:30 pm-6:35 pm

1 stop20h 05m

Budapest Ferenc Liszt Intl

Sun 4/26

5:55 am-1:25 pm

1 stop14h 30m

$774

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 4/19

4:05 pm-5:10 pm

2 stops42h 05m

Budapest Ferenc Liszt Intl

Sun 4/26

5:55 am-1:25 pm

1 stop14h 30m

$781

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Fri 4/17

10:00 am-12:35 pm

2 stops19h 35m

Budapest Ferenc Liszt Intl

Fri 4/24

2:15 pm-5:50 am

2 stops22h 35m

$789

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Fri 4/17

6:05 pm-11:30 pm

2 stops22h 25m

Budapest Ferenc Liszt Intl

Fri 4/24

6:35 am-3:48 pm

2 stops16h 13m

$791

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 4/19

4:05 pm-11:40 pm

2 stops24h 35m

Budapest Ferenc Liszt Intl

Sun 4/26

6:00 am-11:57 pm

2 stops24h 57m

$800

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Tue 5/12

1:00 pm-4:50 pm

2 stops20h 50m

Budapest Ferenc Liszt Intl

Tue 5/19

5:55 am-8:25 pm

2 stops21h 30m

$811

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Budapest from

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

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

You could potentially save up to 52% 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

20h 30m

Direct flights

None
The fastest flight from St. Louis to Budapest takes 20h 30m
There are no direct flights from St. Louis to Budapest. There are no popular flight routes from St. Louis to Budapest.
Search flight deals

  • 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 20h 30m.

  • 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?

  • 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?

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
LufthansaPriceFrom $468Free CancellationRating
6.8
7,828 reviews
Search Lufthansa flights
United AirlinesPriceFrom $578Free CancellationRating
7.4
9,403 reviews
Search United Airlines flights

Traveling to a place near Budapest?

Book flights to Budapest if you plan to visit one of these locations
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.

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Find better results for your trip to Hungary

Airports servicing Hungary

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