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Cheap flights from St. Louis to Budapest from $474

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
11:22 am - 12:35 pmSTL-BUD
18h 13m2 stops
Lufthansa Logo
6:20 am - 11:59 pmBUD-STL
24h 39m2 stops
$549Lufthansa
Find Deal
Wed, Jan 28 - Sun, Feb 1
United Airlines Logo
3:50 pm - 1:40 pmSTL-BUD
14h 50m1 stop
United Airlines Logo
6:20 am - 10:00 pmBUD-STL
22h 40m2 stops
$556United Airlines
Find Deal
Wed, Jan 28 - Sun, Feb 1
Lufthansa Logo
11:22 am - 12:35 pmSTL-BUD
18h 13m2 stops
Lufthansa Logo
6:20 am - 11:59 pmBUD-STL
24h 39m2 stops
$564Lufthansa
Find Deal
Wed, Jan 28 - Sun, Feb 1
United Airlines Logo
3:50 pm - 11:35 amSTL-BUD
12h 45m1 stop
United Airlines Logo
6:20 am - 10:58 pmBUD-STL
23h 38m2 stops
$571United Airlines
Find Deal
Wed, Jan 28 - Sun, Feb 1
Multiple Airlines Logo
9:10 am - 11:30 amSTL-BUD
19h 20m2 stops
Multiple Airlines Logo
5:55 am - 1:30 pmBUD-STL
14h 35m1 stop
$879Multiple Airlines
Find Deal
Sun, May 10 - Sun, May 24
Multiple Airlines Logo
1:30 pm - 11:40 pmSTL-BUD
51h 10m2 stops
Multiple Airlines Logo
9:40 am - 6:25 pmBUD-STL
39h 45m2 stops
$883Multiple Airlines
Find Deal
Sun, May 10 - Sun, May 24
British Airways Logo
10:00 pm - 1:15 amSTL-BUD
20h 15m1 stop
British Airways Logo
7:25 am - 7:30 pmBUD-STL
19h 05m1 stop
$890British Airways
Find Deal
Sun, May 10 - Sun, May 24
Air Canada Logo
1:30 pm - 12:40 pmSTL-BUD
16h 10m2 stops
Air Canada Logo
5:55 am - 6:25 pmBUD-STL
19h 30m2 stops
$904Air Canada
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Sun, May 10 - Sun, May 24
Multiple Airlines Logo
1:30 pm - 12:40 pmSTL-BUD
16h 10m2 stops
Multiple Airlines Logo
5:55 am - 1:30 pmBUD-STL
14h 35m1 stop
$905Multiple Airlines
Find Deal
Sun, May 10 - Sun, May 24
Multiple Airlines Logo
1:30 pm - 12:40 pmSTL-BUD
16h 10m2 stops
Multiple Airlines Logo
5:55 am - 1:30 pmBUD-STL
14h 35m1 stop
$936Multiple Airlines
Find Deal
Fri, May 8 - Sun, May 24

Lufthansa flights from St. Louis to Budapest

Our best Lufthansa deals on St. Louis to Budapest flight tickets
Lufthansa
Jan 28
STL11:22 amLambert-St Louis
18h 13m
2 stops
BUD12:35 pmBudapest Ferenc Liszt Intl
Feb 1
BUD6:20 amBudapest Ferenc Liszt Intl
24h 39m
2 stops
STL11:59 pmLambert-St Louis
$549
Find similar
Lufthansa
Jan 28
STL11:22 amLambert-St Louis
18h 13m
2 stops
BUD12:35 pmBudapest Ferenc Liszt Intl
Feb 1
BUD6:20 amBudapest Ferenc Liszt Intl
24h 39m
2 stops
STL11:59 pmLambert-St Louis
$564
Find similar
Lufthansa
Nov 28
STL3:50 pmLambert-St Louis
15h 00m
1 stop
BUD1:50 pmBudapest Ferenc Liszt Intl
Nov 30
BUD6:20 amBudapest Ferenc Liszt Intl
14h 35m
1 stop
STL1:55 pmLambert-St Louis
$2,490
Find similar

United Airlines flights from St. Louis to Budapest

Our best United Airlines deals on St. Louis to Budapest flight tickets
United Airlines
Jan 28
STL3:50 pmLambert-St Louis
14h 50m
1 stop
BUD1:40 pmBudapest Ferenc Liszt Intl
Feb 1
BUD6:20 amBudapest Ferenc Liszt Intl
22h 40m
2 stops
STL10:00 pmLambert-St Louis
$556
Find similar
United Airlines
Jan 28
STL3:50 pmLambert-St Louis
12h 45m
1 stop
BUD11:35 amBudapest Ferenc Liszt Intl
Feb 1
BUD6:20 amBudapest Ferenc Liszt Intl
23h 38m
2 stops
STL10:58 pmLambert-St Louis
$571
Find similar
United Airlines
Dec 25
STL9:55 amLambert-St Louis
28h 15m
2 stops
BUD9:10 pmBudapest Ferenc Liszt Intl
Jan 1
BUD9:40 amBudapest Ferenc Liszt Intl
37h 47m
2 stops
STL4:27 pmLambert-St Louis
$1,463
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 November 26, 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

Wed 1/28

11:22 am-12:35 pm

2 stops18h 13m

Budapest Ferenc Liszt Intl

Sun 2/1

6:20 am-11:59 pm

2 stops24h 39m

$549

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 1/28

3:50 pm-1:40 pm

1 stop14h 50m

Budapest Ferenc Liszt Intl

Sun 2/1

6:20 am-10:00 pm

2 stops22h 40m

$556

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 1/28

11:22 am-12:35 pm

2 stops18h 13m

Budapest Ferenc Liszt Intl

Sun 2/1

6:20 am-11:59 pm

2 stops24h 39m

$564

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 1/28

3:50 pm-11:35 am

1 stop12h 45m

Budapest Ferenc Liszt Intl

Sun 2/1

6:20 am-10:58 pm

2 stops23h 38m

$571

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 5/10

9:10 am-11:30 am

2 stops19h 20m

Budapest Ferenc Liszt Intl

Sun 5/24

5:55 am-1:30 pm

1 stop14h 35m

$879

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 5/10

1:30 pm-11:40 pm

2 stops51h 10m

Budapest Ferenc Liszt Intl

Sun 5/24

9:40 am-6:25 pm

2 stops39h 45m

$883

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 5/10

10:00 pm-1:15 am

1 stop20h 15m

Budapest Ferenc Liszt Intl

Sun 5/24

7:25 am-7:30 pm

1 stop19h 05m

$890

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 5/10

1:30 pm-12:40 pm

2 stops16h 10m

Budapest Ferenc Liszt Intl

Sun 5/24

5:55 am-6:25 pm

2 stops19h 30m

$904

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 5/10

1:30 pm-12:40 pm

2 stops16h 10m

Budapest Ferenc Liszt Intl

Sun 5/24

5:55 am-1:30 pm

1 stop14h 35m

$905

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Fri 5/8

1:30 pm-12:40 pm

2 stops16h 10m

Budapest Ferenc Liszt Intl

Sun 5/24

5:55 am-1:30 pm

1 stop14h 35m

$936

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 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 11% 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

18h 13m

Direct flights

None
The fastest flight from St. Louis to Budapest takes 18h 13m
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 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 $517Free CancellationRating
6.8
7,594 reviews
Search Lufthansa flights
United AirlinesPriceFrom $578Free CancellationRating
7.4
9,046 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