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Cheap flights from St. Louis to Budapest from $340

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 7/24. 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.
Scandinavian Airlines Logo
4:40 pm - 9:40 am
STL
-
BUD
34h 00m
2 stops
Scandinavian Airlines Logo
10:25 am - 11:39 pm
BUD
-
STL
20h 14m
2 stops
$725Scandinavian Airlines
Wed, Dec 2 - Fri, Dec 11
Scandinavian Airlines Logo
1:30 pm - 9:40 am
STL
-
BUD
37h 10m
2 stops
Scandinavian Airlines Logo
10:25 am - 11:39 pm
BUD
-
STL
20h 14m
2 stops
$727Scandinavian Airlines
Fri, Dec 4 - Fri, Dec 11
Multiple Airlines Logo
4:15 pm - 11:30 pm
STL
-
BUD
24h 15m
2 stops
Multiple Airlines Logo
6:30 am - 1:45 pm
BUD
-
STL
14h 15m
1 stop
$766Multiple Airlines
Wed, Dec 2 - Fri, Dec 11
United Airlines Logo
3:15 pm - 4:15 pm
STL
-
BUD
18h 00m
2 stops
United Airlines Logo
6:30 am - 1:45 pm
BUD
-
STL
14h 15m
1 stop
$767United Airlines
Mon, Nov 30 - Fri, Dec 11
Multiple Airlines Logo
4:15 pm - 11:30 pm
STL
-
BUD
24h 15m
2 stops
Multiple Airlines Logo
6:30 am - 1:45 pm
BUD
-
STL
14h 15m
1 stop
$769Multiple Airlines
Wed, Dec 2 - Fri, Dec 11
United Airlines Logo
1:27 pm - 4:15 pm
STL
-
BUD
19h 48m
2 stops
United Airlines Logo
2:25 pm - 3:30 pm
BUD
-
STL
32h 05m
2 stops
$774United Airlines
Mon, Nov 16 - Thu, Nov 19
Delta Logo
2:18 pm - 10:25 pm
STL
-
BUD
25h 07m
2 stops
Delta Logo
6:30 am - 8:49 pm
BUD
-
STL
21h 19m
2 stops
$775Delta
Mon, Nov 30 - Fri, Dec 11
United Airlines Logo
9:23 am - 9:15 am
STL
-
BUD
16h 52m
2 stops
United Airlines Logo
6:30 am - 1:45 pm
BUD
-
STL
14h 15m
1 stop
$779United Airlines
Sun, Nov 29 - Fri, Dec 11
Air Canada Logo
4:15 pm - 8:50 am
STL
-
BUD
33h 35m
2 stops
Air Canada Logo
10:00 am - 3:30 pm
BUD
-
STL
36h 30m
2 stops
$780Air Canada
Sun, Nov 29 - Fri, Dec 11
United Airlines Logo
3:40 pm - 5:55 pm
STL
-
BUD
19h 15m
1 stop
United Airlines Logo
6:30 am - 10:06 pm
BUD
-
STL
22h 36m
2 stops
$784United Airlines
Sun, Nov 29 - Thu, Dec 10

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Air Canada flights from St. Louis to Budapest

Our best Air Canada deals on St. Louis to Budapest flight tickets
Air Canada
Nov 29
STL4:15 pmLambert-St Louis
33h 35m
2 stops
BUD8:50 amBudapest Ferenc Liszt Intl
Dec 11
BUD10:00 amBudapest Ferenc Liszt Intl
36h 30m
2 stops
STL3:30 pmLambert-St Louis
$780
Air Canada
Dec 5
STL4:15 pmLambert-St Louis
38h 25m
2 stops
BUD1:40 pmBudapest Ferenc Liszt Intl
Dec 9
BUD10:00 amBudapest Ferenc Liszt Intl
36h 30m
2 stops
STL3:30 pmLambert-St Louis
$790
Air Canada
Nov 29
STL4:15 pmLambert-St Louis
33h 35m
2 stops
BUD8:50 amBudapest Ferenc Liszt Intl
Dec 14
BUD1:20 pmBudapest Ferenc Liszt Intl
57h 10m
2 stops
STL3:30 pmLambert-St Louis
$792

Lufthansa flights from St. Louis to Budapest

Our best Lufthansa deals on St. Louis to Budapest flight tickets
Lufthansa
Dec 5
STL6:45 pmLambert-St Louis
35h 55m
2 stops
BUD1:40 pmBudapest Ferenc Liszt Intl
Dec 9
BUD6:30 amBudapest Ferenc Liszt Intl
14h 15m
1 stop
STL1:45 pmLambert-St Louis
$795
Lufthansa
Nov 29
STL3:40 pmLambert-St Louis
19h 15m
1 stop
BUD5:55 pmBudapest Ferenc Liszt Intl
Dec 8
BUD10:00 amBudapest Ferenc Liszt Intl
34h 45m
1 stop
STL1:45 pmLambert-St Louis
$799
Lufthansa
Dec 5
STL6:45 pmLambert-St Louis
35h 55m
2 stops
BUD1:40 pmBudapest Ferenc Liszt Intl
Dec 8
BUD11:40 amBudapest Ferenc Liszt Intl
33h 05m
1 stop
STL1:45 pmLambert-St Louis
$815

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 June 18, 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

Wed 12/2

4:40 pm-9:40 am

2 stops34h 00m

Budapest Ferenc Liszt Intl

Fri 12/11

10:25 am-11:39 pm

2 stops20h 14m

$725

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Fri 12/4

1:30 pm-9:40 am

2 stops37h 10m

Budapest Ferenc Liszt Intl

Fri 12/11

10:25 am-11:39 pm

2 stops20h 14m

$727

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 12/2

4:15 pm-11:30 pm

2 stops24h 15m

Budapest Ferenc Liszt Intl

Fri 12/11

6:30 am-1:45 pm

1 stop14h 15m

$766

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Mon 11/30

3:15 pm-4:15 pm

2 stops18h 00m

Budapest Ferenc Liszt Intl

Fri 12/11

6:30 am-1:45 pm

1 stop14h 15m

$767

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 12/2

4:15 pm-11:30 pm

2 stops24h 15m

Budapest Ferenc Liszt Intl

Fri 12/11

6:30 am-1:45 pm

1 stop14h 15m

$769

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Mon 11/16

1:27 pm-4:15 pm

2 stops19h 48m

Budapest Ferenc Liszt Intl

Thu 11/19

2:25 pm-3:30 pm

2 stops32h 05m

$774

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Mon 11/30

2:18 pm-10:25 pm

2 stops25h 07m

Budapest Ferenc Liszt Intl

Fri 12/11

6:30 am-8:49 pm

2 stops21h 19m

$775
Quickest round-trip

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 11/29

9:23 am-9:15 am

2 stops16h 52m

Budapest Ferenc Liszt Intl

Fri 12/11

6:30 am-1:45 pm

1 stop14h 15m

$779

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 11/29

4:15 pm-8:50 am

2 stops33h 35m

Budapest Ferenc Liszt Intl

Fri 12/11

10:00 am-3:30 pm

2 stops36h 30m

$780

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 11/29

3:40 pm-5:55 pm

1 stop19h 15m

Budapest Ferenc Liszt Intl

Thu 12/10

6:30 am-10:06 pm

2 stops22h 36m

$784

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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 cheapest month to fly to Budapest?

The cheapest month to fly to Budapest from St. Louis is in June. Flight prices, which tend to average around $0, 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 $0.

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

You could potentially save up to 22% 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 30m

Direct flights

None
The fastest flight from St. Louis to Budapest takes 12h 30m
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 30m.

  • 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
8,071 reviews
Search Lufthansa flights
United AirlinesPriceFrom $562Free CancellationRating
7.4
9,859 reviews
Search United Airlines flights
British AirwaysPriceFrom $825Free CancellationRating
6.7
8,054 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