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Cheap flights from St. Louis to Budapest from $388

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 9/13. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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
1:08 pm - 12:35 pm
STL
-
BUD
16h 27m
2 stops
United Airlines Logo
2:25 pm - 3:26 pm
BUD
-
STL
32h 01m
2 stops
$773United Airlines
Mon, Nov 9 - Thu, Nov 12
Multiple Airlines Logo
3:40 pm - 1:40 pm
STL
-
BUD
15h 00m
1 stop
Multiple Airlines Logo
8:00 pm - 3:26 pm
BUD
-
STL
50h 26m
2 stops
$780Multiple Airlines
Sun, Nov 29 - Mon, Dec 7
Multiple Airlines Logo
4:05 pm - 8:50 am
STL
-
BUD
33h 45m
2 stops
Multiple Airlines Logo
8:00 pm - 3:26 pm
BUD
-
STL
50h 26m
2 stops
$781Multiple Airlines
Sun, Nov 29 - Mon, Dec 7
Lufthansa Logo
1:29 pm - 12:35 pm
STL
-
BUD
16h 06m
2 stops
Lufthansa Logo
5:55 am - 1:25 pm
BUD
-
STL
14h 30m
1 stop
$786Lufthansa
Mon, Oct 12 - Tue, Oct 20
Lufthansa Logo
1:29 pm - 12:35 pm
STL
-
BUD
16h 06m
2 stops
Lufthansa Logo
9:10 am - 9:21 pm
BUD
-
STL
19h 11m
2 stops
$794Lufthansa
Mon, Oct 12 - Tue, Oct 20
Multiple Airlines Logo
8:55 am - 9:40 am
STL
-
BUD
17h 45m
1 stop
Multiple Airlines Logo
5:55 am - 1:25 pm
BUD
-
STL
14h 30m
1 stop
$800Multiple Airlines
Sun, Aug 16 - Tue, Aug 25
Multiple Airlines Logo
12:10 pm - 5:10 pm
STL
-
BUD
22h 00m
2 stops
Multiple Airlines Logo
5:55 am - 1:25 pm
BUD
-
STL
14h 30m
1 stop
$805Multiple Airlines
Sun, Aug 16 - Tue, Aug 25
Lufthansa Logo
3:30 pm - 1:25 pm
STL
-
BUD
14h 55m
1 stop
Lufthansa Logo
5:55 am - 1:25 pm
BUD
-
STL
14h 30m
1 stop
$806Lufthansa
Mon, Oct 12 - Tue, Oct 20
Multiple Airlines Logo
12:10 pm - 5:10 pm
STL
-
BUD
22h 00m
2 stops
Multiple Airlines Logo
7:35 pm - 6:42 pm
BUD
-
STL
30h 07m
2 stops
$808Multiple Airlines
Sun, Aug 16 - Mon, Aug 24
Multiple Airlines Logo
12:10 pm - 5:10 pm
STL
-
BUD
22h 00m
2 stops
Multiple Airlines Logo
7:35 pm - 6:42 pm
BUD
-
STL
30h 07m
2 stops
$809Multiple Airlines
Sun, Aug 16 - Mon, Aug 24

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Lufthansa flights from St. Louis to Budapest

Our best Lufthansa deals on St. Louis to Budapest flight tickets
Lufthansa
Oct 12
STL1:29 pmLambert-St Louis
16h 06m
2 stops
BUD12:35 pmBudapest Ferenc Liszt Intl
Oct 20
BUD5:55 amBudapest Ferenc Liszt Intl
14h 30m
1 stop
STL1:25 pmLambert-St Louis
$786
Lufthansa
Oct 12
STL1:29 pmLambert-St Louis
16h 06m
2 stops
BUD12:35 pmBudapest Ferenc Liszt Intl
Oct 20
BUD9:10 amBudapest Ferenc Liszt Intl
19h 11m
2 stops
STL9:21 pmLambert-St Louis
$794
Lufthansa
Oct 12
STL3:30 pmLambert-St Louis
14h 55m
1 stop
BUD1:25 pmBudapest Ferenc Liszt Intl
Oct 20
BUD5:55 amBudapest Ferenc Liszt Intl
14h 30m
1 stop
STL1:25 pmLambert-St Louis
$806

United Airlines flights from St. Louis to Budapest

Our best United Airlines deals on St. Louis to Budapest flight tickets
United Airlines
Nov 9
STL1:08 pmLambert-St Louis
16h 27m
2 stops
BUD12:35 pmBudapest Ferenc Liszt Intl
Nov 12
BUD2:25 pmBudapest Ferenc Liszt Intl
32h 01m
2 stops
STL3:26 pmLambert-St Louis
$773
United Airlines
Nov 20
STL3:40 pmLambert-St Louis
19h 15m
1 stop
BUD5:55 pmBudapest Ferenc Liszt Intl
Dec 18
BUD6:30 amBudapest Ferenc Liszt Intl
14h 15m
1 stop
STL1:45 pmLambert-St Louis
$880
United Airlines
Nov 20
STL3:40 pmLambert-St Louis
12h 20m
1 stop
BUD11:00 amBudapest Ferenc Liszt Intl
Dec 15
BUD10:00 amBudapest Ferenc Liszt Intl
16h 29m
2 stops
STL7:29 pmLambert-St Louis
$891

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 July 16, 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

Mon 11/9

1:08 pm-12:35 pm

2 stops16h 27m

Budapest Ferenc Liszt Intl

Thu 11/12

2:25 pm-3:26 pm

2 stops32h 01m

$773

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 11/29

3:40 pm-1:40 pm

1 stop15h 00m

Budapest Ferenc Liszt Intl

Mon 12/7

8:00 pm-3:26 pm

2 stops50h 26m

$780

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 11/29

4:05 pm-8:50 am

2 stops33h 45m

Budapest Ferenc Liszt Intl

Mon 12/7

8:00 pm-3:26 pm

2 stops50h 26m

$781

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Mon 10/12

1:29 pm-12:35 pm

2 stops16h 06m

Budapest Ferenc Liszt Intl

Tue 10/20

5:55 am-1:25 pm

1 stop14h 30m

$786

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Mon 10/12

1:29 pm-12:35 pm

2 stops16h 06m

Budapest Ferenc Liszt Intl

Tue 10/20

9:10 am-9:21 pm

2 stops19h 11m

$794

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 8/16

8:55 am-9:40 am

1 stop17h 45m

Budapest Ferenc Liszt Intl

Tue 8/25

5:55 am-1:25 pm

1 stop14h 30m

$800

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 8/16

12:10 pm-5:10 pm

2 stops22h 00m

Budapest Ferenc Liszt Intl

Tue 8/25

5:55 am-1:25 pm

1 stop14h 30m

$805
Quickest round-trip

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Mon 10/12

3:30 pm-1:25 pm

1 stop14h 55m

Budapest Ferenc Liszt Intl

Tue 10/20

5:55 am-1:25 pm

1 stop14h 30m

$806

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 8/16

12:10 pm-5:10 pm

2 stops22h 00m

Budapest Ferenc Liszt Intl

Mon 8/24

7:35 pm-6:42 pm

2 stops30h 07m

$808

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 8/16

12:10 pm-5:10 pm

2 stops22h 00m

Budapest Ferenc Liszt Intl

Mon 8/24

7:35 pm-6:42 pm

2 stops30h 07m

$809

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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?

What is the cheapest month to fly to Budapest?

The cheapest month to fly to Budapest from St. Louis is in February. Flight prices, which tend to average around $0, are often lower during this time because this is during the off-season. The month of October is another great option to travel to Budapest, with average flight prices from St. Louis averaging around $616.

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

You could potentially save up to 40% 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

12h 25m

Direct flights

None
The fastest flight from St. Louis to Budapest takes 12h 25m
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 12h 25m.

  • 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
8,139 reviews
Search Lufthansa flights
United AirlinesPriceFrom $562Free CancellationRating
7.4
9,993 reviews
Search United Airlines flights
British AirwaysPriceFrom $825Free CancellationRating
6.7
8,121 reviews
Search British Airways 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