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Cheap flights from St. Louis to Budapest from $294

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 10/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from St. Louis to Budapest

Cheap round-trip flights

Scandinavian Airlines Logo
1:33 pm - 9:40 amSTL-BUD
37h 07m2 stops
Scandinavian Airlines Logo
10:25 am - 11:41 pmBUD-STL
20h 16m2 stops
$546Scandinavian Airlines
Find Deal
Sat, Dec 6 - Fri, Dec 12
Lufthansa Logo
6:43 pm - 9:10 pmSTL-BUD
19h 27m2 stops
Lufthansa Logo
6:25 am - 1:55 pmBUD-STL
14h 30m1 stop
$602Lufthansa
Find Deal
Sun, Nov 30 - Fri, Dec 12
Air Canada Logo
4:05 pm - 8:50 amSTL-BUD
33h 45m2 stops
Air Canada Logo
10:10 am - 3:29 pmBUD-STL
36h 19m2 stops
$603Air Canada
Find Deal
Mon, Dec 1 - Fri, Dec 12
Lufthansa Logo
12:31 pm - 11:30 amSTL-BUD
15h 59m2 stops
Lufthansa Logo
6:25 am - 1:55 pmBUD-STL
14h 30m1 stop
$606Lufthansa
Find Deal
Mon, Dec 1 - Fri, Dec 12
Air Canada Logo
4:05 pm - 9:20 amSTL-BUD
34h 15m2 stops
Air Canada Logo
10:10 am - 3:29 pmBUD-STL
36h 19m2 stops
$610Air Canada
Find Deal
Sun, Nov 30 - Fri, Dec 12
Logo
4:05 pm - 2:05 pmSTL-BUD
15h 00m2 stops
Logo
12:20 pm - 9:40 pmBUD-STL
40h 20m2 stops
$622
Find Deal
Wed, Dec 3 - Mon, Dec 15
United Airlines Logo
1:00 pm - 9:10 pmSTL-BUD
25h 10m2 stops
United Airlines Logo
1:20 pm - 8:57 pmBUD-STL
38h 37m2 stops
$628United Airlines
Find Deal
Wed, Dec 3 - Mon, Dec 15
Logo
4:50 pm - 1:35 pmSTL-BUD
14h 45m1 stop
Logo
7:55 am - 8:39 pmBUD-STL
18h 44m2 stops
$644
Find Deal
Sun, Oct 26 - Sun, Nov 2
United Airlines Logo
3:14 pm - 4:15 pmSTL-BUD
19h 01m2 stops
United Airlines Logo
7:55 am - 11:22 pmBUD-STL
21h 27m2 stops
$668United Airlines
Find Deal
Sun, Oct 26 - Sun, Nov 2
British Airways Logo
5:54 pm - 5:20 pmSTL-BUD
16h 26m2 stops
British Airways Logo
10:55 am - 10:25 pmBUD-STL
18h 30m2 stops
$724British Airways
Find Deal
Wed, Dec 3 - Sun, Dec 14

United Airlines flights from St. Louis to Budapest

Our best United Airlines deals on St. Louis to Budapest flight tickets
United Airlines
Dec 3
STL1:00 pmLambert-St Louis
25h 10m
2 stops
BUD9:10 pmBudapest Ferenc Liszt Intl
Dec 15
BUD1:20 pmBudapest Ferenc Liszt Intl
38h 37m
2 stops
STL8:57 pmLambert-St Louis
$628
Find similar
United Airlines
Oct 26
STL3:14 pmLambert-St Louis
19h 01m
2 stops
BUD4:15 pmBudapest Ferenc Liszt Intl
Nov 2
BUD7:55 amBudapest Ferenc Liszt Intl
21h 27m
2 stops
STL11:22 pmLambert-St Louis
$668
Find similar
United Airlines
Nov 25
STL6:30 amLambert-St Louis
24h 35m
2 stops
BUD2:05 pmBudapest Ferenc Liszt Intl
Dec 7
BUD1:20 pmBudapest Ferenc Liszt Intl
57h 09m
2 stops
STL3:29 pmLambert-St Louis
$672
Find similar

Scandinavian Airlines flights from St. Louis to Budapest

Our best Scandinavian Airlines deals on St. Louis to Budapest flight tickets
Scandinavian Airlines
Dec 6
STL1:33 pmLambert-St Louis
37h 07m
2 stops
BUD9:40 amBudapest Ferenc Liszt Intl
Dec 12
BUD10:25 amBudapest Ferenc Liszt Intl
20h 16m
2 stops
STL11:41 pmLambert-St Louis
$546
Find similar
Scandinavian Airlines
Dec 5
STL11:40 amLambert-St Louis
39h 00m
2 stops
BUD9:40 amBudapest Ferenc Liszt Intl
Dec 12
BUD10:25 amBudapest Ferenc Liszt Intl
17h 38m
2 stops
STL9:03 pmLambert-St Louis
$666
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 September 11, 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

Sat 12/6

1:33 pm-9:40 am

2 stops37h 07m

Budapest Ferenc Liszt Intl

Fri 12/12

10:25 am-11:41 pm

2 stops20h 16m

$546

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 11/30

6:43 pm-9:10 pm

2 stops19h 27m

Budapest Ferenc Liszt Intl

Fri 12/12

6:25 am-1:55 pm

1 stop14h 30m

$602

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Mon 12/1

4:05 pm-8:50 am

2 stops33h 45m

Budapest Ferenc Liszt Intl

Fri 12/12

10:10 am-3:29 pm

2 stops36h 19m

$603

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Mon 12/1

12:31 pm-11:30 am

2 stops15h 59m

Budapest Ferenc Liszt Intl

Fri 12/12

6:25 am-1:55 pm

1 stop14h 30m

$606

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 11/30

4:05 pm-9:20 am

2 stops34h 15m

Budapest Ferenc Liszt Intl

Fri 12/12

10:10 am-3:29 pm

2 stops36h 19m

$610

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 12/3

4:05 pm-2:05 pm

2 stops15h 00m

Budapest Ferenc Liszt Intl

Mon 12/15

12:20 pm-9:40 pm

2 stops40h 20m

$622

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 12/3

1:00 pm-9:10 pm

2 stops25h 10m

Budapest Ferenc Liszt Intl

Mon 12/15

1:20 pm-8:57 pm

2 stops38h 37m

$628

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 10/26

4:50 pm-1:35 pm

1 stop14h 45m

Budapest Ferenc Liszt Intl

Sun 11/2

7:55 am-8:39 pm

2 stops18h 44m

$644

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 10/26

3:14 pm-4:15 pm

2 stops19h 01m

Budapest Ferenc Liszt Intl

Sun 11/2

7:55 am-11:22 pm

2 stops21h 27m

$668

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 12/3

5:54 pm-5:20 pm

2 stops16h 26m

Budapest Ferenc Liszt Intl

Sun 12/14

10:55 am-10:25 pm

2 stops18h 30m

$724

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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 February. Flight prices, which tend to average around $715, 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 $890.

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 14% 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 20m.

  • 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
United AirlinesPriceFrom $707Free CancellationRating
7.4
8,937 reviews
Search United Airlines flights
LufthansaPriceFrom $712Free CancellationRating
6.8
7,409 reviews
Search Lufthansa 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