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Cheap flights from St. Louis to Budapest from $345

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 5/17. 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.
Scandinavian Airlines Logo
4:21 pm - 7:10 pm
STL
-
BUD
20h 49m
2 stops
Scandinavian Airlines Logo
7:50 pm - 9:06 pm
BUD
-
STL
32h 16m
2 stops
$668Scandinavian Airlines
Mon, Mar 23 - Mon, Mar 30
Multiple Airlines Logo
2:40 pm - 11:30 pm
STL
-
BUD
25h 50m
2 stops
Multiple Airlines Logo
6:00 am - 10:56 pm
BUD
-
STL
23h 56m
2 stops
$691Multiple Airlines
Wed, Apr 8 - Wed, Apr 15
American Airlines Logo
12:27 pm - 10:50 am
STL
-
BUD
15h 23m
2 stops
American Airlines Logo
12:05 pm - 11:46 pm
BUD
-
STL
18h 41m
2 stops
$700American Airlines
Wed, Apr 8 - Wed, Apr 15
Lufthansa Logo
3:30 pm - 6:40 pm
STL
-
BUD
20h 10m
1 stop
Lufthansa Logo
5:55 am - 1:25 pm
BUD
-
STL
14h 30m
1 stop
$717Lufthansa
Wed, Apr 8 - Wed, Apr 15
Lufthansa Logo
3:30 pm - 6:40 pm
STL
-
BUD
20h 10m
1 stop
Lufthansa Logo
5:55 am - 1:25 pm
BUD
-
STL
14h 30m
1 stop
$737Lufthansa
Wed, Apr 8 - Wed, May 13
Delta Logo
1:39 pm - 5:50 pm
STL
-
BUD
21h 11m
2 stops
Delta Logo
6:00 am - 9:29 pm
BUD
-
STL
22h 29m
2 stops
$741Delta
Wed, Apr 8 - Wed, May 13
Finnair Logo
5:21 pm - 5:40 pm
STL
-
BUD
17h 19m
2 stops
Finnair Logo
6:25 pm - 7:30 pm
BUD
-
STL
32h 05m
2 stops
$760Finnair
Thu, Apr 9 - Thu, Apr 16
Multiple Airlines Logo
5:51 am - 5:40 pm
STL
-
BUD
28h 49m
2 stops
Multiple Airlines Logo
6:25 pm - 10:59 pm
BUD
-
STL
35h 34m
2 stops
$772Multiple Airlines
Thu, Apr 9 - Thu, Apr 16
Multiple Airlines Logo
12:27 pm - 5:40 pm
STL
-
BUD
22h 13m
2 stops
Multiple Airlines Logo
6:25 pm - 7:30 pm
BUD
-
STL
32h 05m
2 stops
$780Multiple Airlines
Thu, Apr 9 - Thu, Apr 16
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
$792Air Canada
Tue, May 12 - Tue, May 19

Air Canada flights from St. Louis to Budapest

Our best Air Canada deals on St. Louis to Budapest flight tickets
Air Canada
May 12
STL1:00 pmLambert-St Louis
20h 50m
2 stops
BUD4:50 pmBudapest Ferenc Liszt Intl
May 19
BUD5:55 amBudapest Ferenc Liszt Intl
21h 30m
2 stops
STL8:25 pmLambert-St Louis
$792
Air Canada
May 13
STL1:00 pmLambert-St Louis
16h 35m
2 stops
BUD12:35 pmBudapest Ferenc Liszt Intl
Jun 3
BUD9:35 amBudapest Ferenc Liszt Intl
17h 30m
2 stops
STL8:05 pmLambert-St Louis
$857
Air Canada
May 10
STL7:05 amLambert-St Louis
26h 45m
2 stops
BUD4:50 pmBudapest Ferenc Liszt Intl
May 24
BUD11:20 amBudapest Ferenc Liszt Intl
31h 46m
2 stops
STL12:06 pmLambert-St Louis
$927

British Airways flights from St. Louis to Budapest

Our best British Airways deals on St. Louis to Budapest flight tickets
British Airways
Apr 10
STL1:29 pmLambert-St Louis
27h 41m
2 stops
BUD12:10 amBudapest Ferenc Liszt Intl
Apr 17
BUD7:05 amBudapest Ferenc Liszt Intl
41h 16m
2 stops
STL5:21 pmLambert-St Louis
$818
British Airways
Apr 29
STL9:35 pmLambert-St Louis
19h 35m
1 stop
BUD12:10 amBudapest Ferenc Liszt Intl
Jun 3
BUD10:05 amBudapest Ferenc Liszt Intl
20h 29m
1 stop
STL11:34 pmLambert-St Louis
$922
British Airways
May 18
STL5:21 pmLambert-St Louis
24h 49m
2 stops
BUD1:10 amBudapest Ferenc Liszt Intl
May 28
BUD5:55 pmBudapest Ferenc Liszt Intl
32h 35m
1 stop
STL7:30 pmLambert-St Louis
$991

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 February 25, 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

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Mon 3/23

4:21 pm-7:10 pm

2 stops20h 49m

Budapest Ferenc Liszt Intl

Mon 3/30

7:50 pm-9:06 pm

2 stops32h 16m

$668

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 4/8

2:40 pm-11:30 pm

2 stops25h 50m

Budapest Ferenc Liszt Intl

Wed 4/15

6:00 am-10:56 pm

2 stops23h 56m

$691

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 4/8

12:27 pm-10:50 am

2 stops15h 23m

Budapest Ferenc Liszt Intl

Wed 4/15

12:05 pm-11:46 pm

2 stops18h 41m

$700

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 4/8

3:30 pm-6:40 pm

1 stop20h 10m

Budapest Ferenc Liszt Intl

Wed 4/15

5:55 am-1:25 pm

1 stop14h 30m

$717

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 4/8

3:30 pm-6:40 pm

1 stop20h 10m

Budapest Ferenc Liszt Intl

Wed 5/13

5:55 am-1:25 pm

1 stop14h 30m

$737

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 4/8

1:39 pm-5:50 pm

2 stops21h 11m

Budapest Ferenc Liszt Intl

Wed 5/13

6:00 am-9:29 pm

2 stops22h 29m

$741

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Thu 4/9

5:21 pm-5:40 pm

2 stops17h 19m

Budapest Ferenc Liszt Intl

Thu 4/16

6:25 pm-7:30 pm

2 stops32h 05m

$760

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Thu 4/9

5:51 am-5:40 pm

2 stops28h 49m

Budapest Ferenc Liszt Intl

Thu 4/16

6:25 pm-10:59 pm

2 stops35h 34m

$772

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Thu 4/9

12:27 pm-5:40 pm

2 stops22h 13m

Budapest Ferenc Liszt Intl

Thu 4/16

6:25 pm-7:30 pm

2 stops32h 05m

$780

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

$792

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

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

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

17h 19m

Direct flights

None
The fastest flight from St. Louis to Budapest takes 17h 19m
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 17h 19m.

  • 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
7,809 reviews
Search Lufthansa flights
United AirlinesPriceFrom $578Free CancellationRating
7.4
9,345 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

Debrecen Airport
Miskolc Airport