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Cheap flights from St. Louis to Budapest from $505

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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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.
Multiple Airlines Logo
5:24 pm - 9:10 pmSTL-BUD
20h 46m2 stops
Multiple Airlines Logo
6:20 am - 1:55 pmBUD-STL
14h 35m1 stop
$549Multiple Airlines
Find Deal
Fri, Nov 7 - Wed, Nov 12
Multiple Airlines Logo
5:24 pm - 9:10 pmSTL-BUD
20h 46m2 stops
Multiple Airlines Logo
7:55 am - 5:39 pmBUD-STL
16h 44m2 stops
$556Multiple Airlines
Find Deal
Fri, Nov 7 - Wed, Nov 12
Lufthansa Logo
11:49 am - 9:10 pmSTL-BUD
26h 21m2 stops
Lufthansa Logo
6:20 am - 1:55 pmBUD-STL
14h 35m1 stop
$559Lufthansa
Find Deal
Tue, Nov 18 - Wed, Nov 26
United Airlines Logo
11:49 am - 12:35 pmSTL-BUD
17h 46m2 stops
United Airlines Logo
10:15 am - 3:29 pmBUD-STL
36h 14m2 stops
$560United Airlines
Find Deal
Tue, Nov 18 - Wed, Nov 26
United Airlines Logo
3:50 pm - 6:05 pmSTL-BUD
19h 15m1 stop
United Airlines Logo
6:20 am - 1:55 pmBUD-STL
14h 35m1 stop
$562United Airlines
Find Deal
Fri, Nov 7 - Wed, Nov 12
United Airlines Logo
3:50 pm - 1:50 pmSTL-BUD
15h 00m1 stop
United Airlines Logo
6:20 am - 10:07 amBUD-STL
34h 47m2 stops
$568United Airlines
Find Deal
Fri, Nov 7 - Wed, Nov 12
Lufthansa Logo
3:50 pm - 1:50 pmSTL-BUD
15h 00m1 stop
Lufthansa Logo
5:00 pm - 11:42 pmBUD-STL
37h 42m2 stops
$666Lufthansa
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Fri, Nov 14 - Sun, Dec 14
British Airways Logo
2:54 pm - 11:15 amSTL-BUD
37h 21m2 stops
British Airways Logo
12:15 pm - 11:45 pmBUD-STL
18h 30m2 stops
$717British Airways
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Thu, Dec 11 - Thu, Dec 18
Air Canada Logo
4:05 pm - 2:05 pmSTL-BUD
15h 00m2 stops
Air Canada Logo
10:15 am - 10:45 pmBUD-STL
19h 30m3 stops
$735Air Canada
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Tue, Nov 18 - Wed, Nov 26
Air Canada Logo
4:05 pm - 12:35 pmSTL-BUD
14h 30m2 stops
Air Canada Logo
10:05 am - 10:45 pmBUD-STL
19h 40m3 stops
$798Air Canada
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Tue, Oct 28 - Tue, Nov 25

Lufthansa flights from St. Louis to Budapest

Our best Lufthansa deals on St. Louis to Budapest flight tickets
Lufthansa
Nov 18
STL11:49 amLambert-St Louis
26h 21m
2 stops
BUD9:10 pmBudapest Ferenc Liszt Intl
Nov 26
BUD6:20 amBudapest Ferenc Liszt Intl
14h 35m
1 stop
STL1:55 pmLambert-St Louis
$559
Find similar
Lufthansa
Nov 14
STL3:50 pmLambert-St Louis
15h 00m
1 stop
BUD1:50 pmBudapest Ferenc Liszt Intl
Dec 14
BUD5:00 pmBudapest Ferenc Liszt Intl
37h 42m
2 stops
STL11:42 pmLambert-St Louis
$666
Find similar
Lufthansa
Mar 27
STL4:50 pmLambert-St Louis
12h 45m
1 stop
BUD11:35 amBudapest Ferenc Liszt Intl
Mar 31
BUD7:05 pmBudapest Ferenc Liszt Intl
25h 25m
1 stop
STL1:30 pmLambert-St Louis
$685
Find similar

Air Canada flights from St. Louis to Budapest

Our best Air Canada deals on St. Louis to Budapest flight tickets
Air Canada
Nov 18
STL4:05 pmLambert-St Louis
15h 00m
2 stops
BUD2:05 pmBudapest Ferenc Liszt Intl
Nov 26
BUD10:15 amBudapest Ferenc Liszt Intl
19h 30m
3 stops
STL10:45 pmLambert-St Louis
$735
Find similar
Air Canada
Oct 28
STL4:05 pmLambert-St Louis
14h 30m
2 stops
BUD12:35 pmBudapest Ferenc Liszt Intl
Nov 25
BUD10:05 amBudapest Ferenc Liszt Intl
19h 40m
3 stops
STL10:45 pmLambert-St Louis
$798
Find similar
Air Canada
Oct 29
STL4:05 pmLambert-St Louis
14h 30m
2 stops
BUD12:35 pmBudapest Ferenc Liszt Intl
Nov 26
BUD10:15 amBudapest Ferenc Liszt Intl
19h 30m
3 stops
STL10:45 pmLambert-St Louis
$1,016
Find similar

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 October 9, 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 11/7

5:24 pm-9:10 pm

2 stops20h 46m

Budapest Ferenc Liszt Intl

Wed 11/12

6:20 am-1:55 pm

1 stop14h 35m

$549

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Fri 11/7

5:24 pm-9:10 pm

2 stops20h 46m

Budapest Ferenc Liszt Intl

Wed 11/12

7:55 am-5:39 pm

2 stops16h 44m

$556

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Tue 11/18

11:49 am-9:10 pm

2 stops26h 21m

Budapest Ferenc Liszt Intl

Wed 11/26

6:20 am-1:55 pm

1 stop14h 35m

$559

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Tue 11/18

11:49 am-12:35 pm

2 stops17h 46m

Budapest Ferenc Liszt Intl

Wed 11/26

10:15 am-3:29 pm

2 stops36h 14m

$560

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Fri 11/7

3:50 pm-6:05 pm

1 stop19h 15m

Budapest Ferenc Liszt Intl

Wed 11/12

6:20 am-1:55 pm

1 stop14h 35m

$562

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Fri 11/7

3:50 pm-1:50 pm

1 stop15h 00m

Budapest Ferenc Liszt Intl

Wed 11/12

6:20 am-10:07 am

2 stops34h 47m

$568

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Fri 11/14

3:50 pm-1:50 pm

1 stop15h 00m

Budapest Ferenc Liszt Intl

Sun 12/14

5:00 pm-11:42 pm

2 stops37h 42m

$666

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Thu 12/11

2:54 pm-11:15 am

2 stops37h 21m

Budapest Ferenc Liszt Intl

Thu 12/18

12:15 pm-11:45 pm

2 stops18h 30m

$717

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Tue 11/18

4:05 pm-2:05 pm

2 stops15h 00m

Budapest Ferenc Liszt Intl

Wed 11/26

10:15 am-10:45 pm

3 stops19h 30m

$735

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Tue 10/28

4:05 pm-12:35 pm

2 stops14h 30m

Budapest Ferenc Liszt Intl

Tue 11/25

10:05 am-10:45 pm

3 stops19h 40m

$798

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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 February is another great option to travel to Budapest, with average flight prices from St. Louis averaging around $715.

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 17% 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 45m.

  • 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 $781Free CancellationRating
6.8
7,462 reviews
Search Lufthansa flights
United AirlinesPriceFrom $787Free CancellationRating
7.4
8,968 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