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Cheap flights from St. Louis to Budapest from $319

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 8/5. 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.
Air Canada Logo
4:05 pm - 4:50 pm
STL
-
BUD
17h 45m
2 stops
Air Canada Logo
5:55 am - 8:05 pm
BUD
-
STL
21h 10m
2 stops
$567Air Canada
Mon, Apr 13 - Wed, May 6
United Airlines Logo
7:45 am - 1:25 pm
STL
-
BUD
22h 40m
2 stops
United Airlines Logo
5:55 am - 1:25 pm
BUD
-
STL
14h 30m
1 stop
$572United Airlines
Mon, Apr 13 - Fri, May 1
United Airlines Logo
11:15 am - 10:55 am
STL
-
BUD
16h 40m
2 stops
United Airlines Logo
5:55 am - 8:05 pm
BUD
-
STL
21h 10m
2 stops
$575United Airlines
Tue, Apr 14 - Wed, May 6
United Airlines Logo
4:05 pm - 6:40 pm
STL
-
BUD
19h 35m
2 stops
United Airlines Logo
5:55 am - 1:25 pm
BUD
-
STL
14h 30m
1 stop
$576United Airlines
Wed, Apr 15 - Fri, May 1
Air Canada Logo
4:05 pm - 6:40 pm
STL
-
BUD
19h 35m
2 stops
Air Canada Logo
5:55 am - 8:05 pm
BUD
-
STL
21h 10m
2 stops
$579Air Canada
Wed, Apr 15 - Tue, May 5
United Airlines Logo
9:10 am - 1:25 pm
STL
-
BUD
21h 15m
2 stops
United Airlines Logo
5:55 am - 8:04 pm
BUD
-
STL
21h 09m
2 stops
$580United Airlines
Mon, Apr 13 - Fri, May 1
United Airlines Logo
9:10 am - 1:25 pm
STL
-
BUD
21h 15m
2 stops
United Airlines Logo
6:35 am - 9:08 pm
BUD
-
STL
21h 33m
2 stops
$583United Airlines
Mon, Apr 13 - Thu, Apr 30
United Airlines Logo
4:05 pm - 6:40 pm
STL
-
BUD
19h 35m
2 stops
United Airlines Logo
5:55 am - 8:04 pm
BUD
-
STL
21h 09m
2 stops
$584United Airlines
Wed, Apr 15 - Fri, May 1
Air Canada Logo
4:05 pm - 4:50 pm
STL
-
BUD
17h 45m
2 stops
Air Canada Logo
2:10 pm - 8:05 pm
BUD
-
STL
36h 55m
2 stops
$587Air Canada
Mon, Apr 13 - Mon, May 4
United Airlines Logo
11:15 am - 10:55 am
STL
-
BUD
16h 40m
2 stops
United Airlines Logo
2:25 pm - 1:25 pm
BUD
-
STL
30h 00m
1 stop
$593United Airlines
Tue, Apr 14 - Tue, May 5

United Airlines flights from St. Louis to Budapest

Our best United Airlines deals on St. Louis to Budapest flight tickets
United Airlines
Apr 13
STL7:45 amLambert-St Louis
22h 40m
2 stops
BUD1:25 pmBudapest Ferenc Liszt Intl
May 1
BUD5:55 amBudapest Ferenc Liszt Intl
14h 30m
1 stop
STL1:25 pmLambert-St Louis
$572
United Airlines
Apr 14
STL11:15 amLambert-St Louis
16h 40m
2 stops
BUD10:55 amBudapest Ferenc Liszt Intl
May 6
BUD5:55 amBudapest Ferenc Liszt Intl
21h 10m
2 stops
STL8:05 pmLambert-St Louis
$575
United Airlines
Apr 15
STL4:05 pmLambert-St Louis
19h 35m
2 stops
BUD6:40 pmBudapest Ferenc Liszt Intl
May 1
BUD5:55 amBudapest Ferenc Liszt Intl
14h 30m
1 stop
STL1:25 pmLambert-St Louis
$576

Air Canada flights from St. Louis to Budapest

Our best Air Canada deals on St. Louis to Budapest flight tickets
Air Canada
Apr 13
STL4:05 pmLambert-St Louis
17h 45m
2 stops
BUD4:50 pmBudapest Ferenc Liszt Intl
May 5
BUD5:55 amBudapest Ferenc Liszt Intl
21h 10m
2 stops
STL8:05 pmLambert-St Louis
$567
Air Canada
Apr 15
STL4:05 pmLambert-St Louis
19h 35m
2 stops
BUD6:40 pmBudapest Ferenc Liszt Intl
May 5
BUD5:55 amBudapest Ferenc Liszt Intl
21h 10m
2 stops
STL8:05 pmLambert-St Louis
$579
Air Canada
Apr 13
STL4:05 pmLambert-St Louis
17h 45m
2 stops
BUD4:50 pmBudapest Ferenc Liszt Intl
May 4
BUD2:10 pmBudapest Ferenc Liszt Intl
36h 55m
2 stops
STL8:05 pmLambert-St Louis
$587

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 12, 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 4/13

4:05 pm-4:50 pm

2 stops17h 45m

Budapest Ferenc Liszt Intl

Wed 5/6

5:55 am-8:05 pm

2 stops21h 10m

$567

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Mon 4/13

7:45 am-1:25 pm

2 stops22h 40m

Budapest Ferenc Liszt Intl

Fri 5/1

5:55 am-1:25 pm

1 stop14h 30m

$572

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Tue 4/14

11:15 am-10:55 am

2 stops16h 40m

Budapest Ferenc Liszt Intl

Wed 5/6

5:55 am-8:05 pm

2 stops21h 10m

$575

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 4/15

4:05 pm-6:40 pm

2 stops19h 35m

Budapest Ferenc Liszt Intl

Fri 5/1

5:55 am-1:25 pm

1 stop14h 30m

$576

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 4/15

4:05 pm-6:40 pm

2 stops19h 35m

Budapest Ferenc Liszt Intl

Tue 5/5

5:55 am-8:05 pm

2 stops21h 10m

$579

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Mon 4/13

9:10 am-1:25 pm

2 stops21h 15m

Budapest Ferenc Liszt Intl

Fri 5/1

5:55 am-8:04 pm

2 stops21h 09m

$580

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Mon 4/13

9:10 am-1:25 pm

2 stops21h 15m

Budapest Ferenc Liszt Intl

Thu 4/30

6:35 am-9:08 pm

2 stops21h 33m

$583

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 4/15

4:05 pm-6:40 pm

2 stops19h 35m

Budapest Ferenc Liszt Intl

Fri 5/1

5:55 am-8:04 pm

2 stops21h 09m

$584

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Mon 4/13

4:05 pm-4:50 pm

2 stops17h 45m

Budapest Ferenc Liszt Intl

Mon 5/4

2:10 pm-8:05 pm

2 stops36h 55m

$587

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Tue 4/14

11:15 am-10:55 am

2 stops16h 40m

Budapest Ferenc Liszt Intl

Tue 5/5

2:25 pm-1:25 pm

1 stop30h 00m

$593

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 49% 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 05m

Direct flights

None
The fastest flight from St. Louis to Budapest takes 14h 05m
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 14h 05m.

  • 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
7,780 reviews
Search Lufthansa flights
United AirlinesPriceFrom $578Free CancellationRating
7.4
9,283 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