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Cheap flights from St. Louis to Budapest from $545

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 3/20. 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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Find the cheapest flights from St. Louis to Budapest

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
6:43 pm - 9:10 pmSTL-BUD
19h 27m2 stops
Lufthansa Logo
6:20 am - 1:55 pmBUD-STL
14h 35m1 stop
$696Lufthansa
Find Deal
Fri, Nov 28 - Wed, Dec 3
Multiple Airlines Logo
3:15 pm - 12:35 pmSTL-BUD
14h 20m2 stops
Multiple Airlines Logo
10:05 am - 9:50 pmBUD-STL
17h 45m2 stops
$714Multiple Airlines
Find Deal
Tue, Mar 3 - Tue, Mar 10
United Airlines Logo
6:15 am - 12:35 pmSTL-BUD
23h 20m2 stops
United Airlines Logo
6:20 am - 10:45 pmBUD-STL
23h 25m2 stops
$723United Airlines
Find Deal
Wed, Dec 10 - Wed, Dec 17
Air Canada Logo
4:05 pm - 2:05 pmSTL-BUD
15h 00m2 stops
Air Canada Logo
6:05 am - 9:00 pmBUD-STL
20h 55m3 stops
$724Air Canada
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Tue, Mar 3 - Tue, Mar 10
Lufthansa Logo
4:49 pm - 4:15 pmSTL-BUD
16h 26m2 stops
Lufthansa Logo
2:25 pm - 2:55 pmBUD-STL
30h 30m1 stop
$725Lufthansa
Find Deal
Tue, Mar 3 - Tue, Mar 10
Delta Logo
7:30 am - 11:45 amSTL-BUD
21h 15m2 stops
Delta Logo
2:10 pm - 6:04 pmBUD-STL
34h 54m2 stops
$763Delta
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Sun, Mar 29 - Sat, Apr 4
Air Canada Logo
4:05 pm - 12:35 pmSTL-BUD
14h 30m2 stops
Air Canada Logo
6:00 am - 3:24 pmBUD-STL
40h 24m2 stops
$766Air Canada
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Fri, Mar 27 - Fri, Apr 3
United Airlines Logo
3:50 pm - 5:45 pmSTL-BUD
18h 55m1 stop
United Airlines Logo
6:20 am - 3:29 pmBUD-STL
40h 09m2 stops
$767United Airlines
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Wed, Nov 26 - Thu, Dec 11
Delta Logo
1:00 pm - 5:50 pmSTL-BUD
21h 50m2 stops
Delta Logo
6:00 am - 6:04 pmBUD-STL
19h 04m2 stops
$813Delta
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Tue, Mar 31 - Sun, Apr 5
Scandinavian Airlines Logo
10:00 am - 9:45 amSTL-BUD
40h 45m2 stops
Scandinavian Airlines Logo
7:50 pm - 11:40 pmBUD-STL
34h 50m2 stops
$898Scandinavian Airlines
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Tue, Mar 31 - Sat, Apr 4

Lufthansa flights from St. Louis to Budapest

Our best Lufthansa deals on St. Louis to Budapest flight tickets
Lufthansa
Nov 28
STL6:43 pmLambert-St Louis
19h 27m
2 stops
BUD9:10 pmBudapest Ferenc Liszt Intl
Dec 3
BUD6:20 amBudapest Ferenc Liszt Intl
14h 35m
1 stop
STL1:55 pmLambert-St Louis
$696
Find similar
Lufthansa
Mar 3
STL4:49 pmLambert-St Louis
16h 26m
2 stops
BUD4:15 pmBudapest Ferenc Liszt Intl
Mar 10
BUD2:25 pmBudapest Ferenc Liszt Intl
30h 30m
1 stop
STL2:55 pmLambert-St Louis
$725
Find similar
Lufthansa
Mar 27
STL4:50 pmLambert-St Louis
12h 45m
1 stop
BUD11:35 amBudapest Ferenc Liszt Intl
Apr 3
BUD5:55 amBudapest Ferenc Liszt Intl
14h 35m
1 stop
STL1:30 pmLambert-St Louis
$726
Find similar

United Airlines flights from St. Louis to Budapest

Our best United Airlines deals on St. Louis to Budapest flight tickets
United Airlines
Dec 10
STL6:15 amLambert-St Louis
23h 20m
2 stops
BUD12:35 pmBudapest Ferenc Liszt Intl
Dec 17
BUD6:20 amBudapest Ferenc Liszt Intl
23h 25m
2 stops
STL10:45 pmLambert-St Louis
$723
Find similar
United Airlines
Nov 26
STL3:50 pmLambert-St Louis
18h 55m
1 stop
BUD5:45 pmBudapest Ferenc Liszt Intl
Dec 11
BUD6:20 amBudapest Ferenc Liszt Intl
40h 09m
2 stops
STL3:29 pmLambert-St Louis
$767
Find similar
United Airlines
Mar 29
STL3:30 pmLambert-St Louis
15h 05m
1 stop
BUD1:35 pmBudapest Ferenc Liszt Intl
Apr 5
BUD2:15 pmBudapest Ferenc Liszt Intl
15h 44m
2 stops
STL10:59 pmLambert-St Louis
$802
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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 November 10, 2025.
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

Fri 11/28

6:43 pm-9:10 pm

2 stops19h 27m

Budapest Ferenc Liszt Intl

Wed 12/3

6:20 am-1:55 pm

1 stop14h 35m

$696

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Tue 3/3

3:15 pm-12:35 pm

2 stops14h 20m

Budapest Ferenc Liszt Intl

Tue 3/10

10:05 am-9:50 pm

2 stops17h 45m

$714

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 12/10

6:15 am-12:35 pm

2 stops23h 20m

Budapest Ferenc Liszt Intl

Wed 12/17

6:20 am-10:45 pm

2 stops23h 25m

$723

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Tue 3/3

4:05 pm-2:05 pm

2 stops15h 00m

Budapest Ferenc Liszt Intl

Tue 3/10

6:05 am-9:00 pm

3 stops20h 55m

$724

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Tue 3/3

4:49 pm-4:15 pm

2 stops16h 26m

Budapest Ferenc Liszt Intl

Tue 3/10

2:25 pm-2:55 pm

1 stop30h 30m

$725

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 3/29

7:30 am-11:45 am

2 stops21h 15m

Budapest Ferenc Liszt Intl

Sat 4/4

2:10 pm-6:04 pm

2 stops34h 54m

$763

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Fri 3/27

4:05 pm-12:35 pm

2 stops14h 30m

Budapest Ferenc Liszt Intl

Fri 4/3

6:00 am-3:24 pm

2 stops40h 24m

$766

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 11/26

3:50 pm-5:45 pm

1 stop18h 55m

Budapest Ferenc Liszt Intl

Thu 12/11

6:20 am-3:29 pm

2 stops40h 09m

$767

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Tue 3/31

1:00 pm-5:50 pm

2 stops21h 50m

Budapest Ferenc Liszt Intl

Sun 4/5

6:00 am-6:04 pm

2 stops19h 04m

$813

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Tue 3/31

10:00 am-9:45 am

2 stops40h 45m

Budapest Ferenc Liszt Intl

Sat 4/4

7:50 pm-11:40 pm

2 stops34h 50m

$898

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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?

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.

What is the cheapest day to depart on your flight to Budapest?

The cheapest day to depart on your flight to Budapest is on a Monday when prices can be found for as low as $987. This is often the case because there is less demand to fly during this day of the week. Flights from St. Louis to Budapest on a Sunday will generally be more expensive and average around $1,139. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Budapest?

In the evening is the cheapest time of day to fly from St. Louis to Budapest when you can find flight prices for as low as $917. Flying to Budapest in the evening is an ideal time because this is during off-peak travel hours. Flights at noon are often more expensive with an average ticket price of $1,098.

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

You could potentially save up to 19% 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

Direct flights

None
There are no direct flights from St. Louis to Budapest. There are no popular flight routes from St. Louis to Budapest.
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  • 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 15m.

  • 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 $517Free CancellationRating
6.8
7,565 reviews
Search Lufthansa flights
United AirlinesPriceFrom $578Free CancellationRating
7.4
9,012 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