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Cheap flights from St. Louis to Budapest from $318

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 4/15. 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
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
4:05 pm - 10:45 pm
STL
-
BUD
23h 40m
2 stops
Multiple Airlines Logo
6:20 am - 1:55 pm
BUD
-
STL
14h 35m
1 stop
$509Multiple Airlines
Wed, Feb 25 - Wed, Mar 4
Multiple Airlines Logo
4:05 pm - 12:35 pm
STL
-
BUD
14h 30m
2 stops
Multiple Airlines Logo
5:55 am - 1:25 pm
BUD
-
STL
14h 30m
1 stop
$510Multiple Airlines
Wed, Mar 25 - Wed, Apr 1
Multiple Airlines Logo
4:05 pm - 7:05 pm
STL
-
BUD
20h 00m
2 stops
Multiple Airlines Logo
12:20 pm - 3:29 pm
BUD
-
STL
34h 09m
2 stops
$514Multiple Airlines
Wed, Feb 25 - Wed, Mar 4
British Airways Logo
11:59 am - 11:20 pm
STL
-
BUD
28h 21m
2 stops
British Airways Logo
12:20 pm - 11:48 pm
BUD
-
STL
18h 28m
2 stops
$523British Airways
Wed, Feb 25 - Wed, Mar 4
Multiple Airlines Logo
4:05 pm - 5:45 pm
STL
-
BUD
18h 40m
2 stops
Multiple Airlines Logo
6:20 am - 1:55 pm
BUD
-
STL
14h 35m
1 stop
$524Multiple Airlines
Wed, Feb 25 - Wed, Mar 4
British Airways Logo
4:40 pm - 11:05 pm
STL
-
BUD
23h 25m
2 stops
British Airways Logo
11:35 am - 7:29 pm
BUD
-
STL
38h 54m
2 stops
$528British Airways
Thu, Feb 26 - Thu, Mar 5
Lufthansa Logo
4:50 pm - 5:45 pm
STL
-
BUD
18h 55m
1 stop
Lufthansa Logo
5:55 am - 1:25 pm
BUD
-
STL
14h 30m
1 stop
$534Lufthansa
Wed, Mar 25 - Wed, Apr 1
Lufthansa Logo
3:30 pm - 1:35 pm
STL
-
BUD
15h 05m
1 stop
Lufthansa Logo
9:30 am - 11:57 pm
BUD
-
STL
21h 27m
2 stops
$538Lufthansa
Wed, Apr 8 - Tue, Apr 14
Multiple Airlines Logo
4:05 pm - 5:50 pm
STL
-
BUD
18h 45m
2 stops
Multiple Airlines Logo
2:25 pm - 1:55 pm
BUD
-
STL
30h 30m
1 stop
$561Multiple Airlines
Thu, Feb 26 - Thu, Mar 5
United Airlines Logo
8:30 am - 4:15 pm
STL
-
BUD
24h 45m
2 stops
United Airlines Logo
10:05 am - 3:29 pm
BUD
-
STL
36h 24m
2 stops
$566United Airlines
Thu, Feb 26 - Mon, Mar 2

Lufthansa flights from St. Louis to Budapest

Our best Lufthansa deals on St. Louis to Budapest flight tickets
Lufthansa
Mar 25
STL4:50 pmLambert-St Louis
18h 55m
1 stop
BUD5:45 pmBudapest Ferenc Liszt Intl
Apr 1
BUD5:55 amBudapest Ferenc Liszt Intl
14h 30m
1 stop
STL1:25 pmLambert-St Louis
$534
Lufthansa
Apr 8
STL3:30 pmLambert-St Louis
15h 05m
1 stop
BUD1:35 pmBudapest Ferenc Liszt Intl
Apr 14
BUD9:30 amBudapest Ferenc Liszt Intl
21h 27m
2 stops
STL11:57 pmLambert-St Louis
$538
Lufthansa
Apr 8
STL3:30 pmLambert-St Louis
12h 25m
1 stop
BUD10:55 amBudapest Ferenc Liszt Intl
Apr 14
BUD11:40 amBudapest Ferenc Liszt Intl
32h 45m
1 stop
STL1:25 pmLambert-St Louis
$575

British Airways flights from St. Louis to Budapest

Our best British Airways deals on St. Louis to Budapest flight tickets
British Airways
Feb 25
STL11:59 amLambert-St Louis
28h 21m
2 stops
BUD11:20 pmBudapest Ferenc Liszt Intl
Mar 4
BUD12:20 pmBudapest Ferenc Liszt Intl
18h 28m
2 stops
STL11:48 pmLambert-St Louis
$523
British Airways
Feb 26
STL4:40 pmLambert-St Louis
23h 25m
2 stops
BUD11:05 pmBudapest Ferenc Liszt Intl
Mar 5
BUD11:35 amBudapest Ferenc Liszt Intl
38h 54m
2 stops
STL7:29 pmLambert-St Louis
$528
British Airways
May 12
STL9:35 pmLambert-St Louis
15h 30m
1 stop
BUD8:05 pmBudapest Ferenc Liszt Intl
May 19
BUD2:40 pmBudapest Ferenc Liszt Intl
33h 32m
2 stops
STL5:12 pmLambert-St Louis
$617

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 January 12, 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

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 2/25

4:05 pm-10:45 pm

2 stops23h 40m

Budapest Ferenc Liszt Intl

Wed 3/4

6:20 am-1:55 pm

1 stop14h 35m

$509

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 3/25

4:05 pm-12:35 pm

2 stops14h 30m

Budapest Ferenc Liszt Intl

Wed 4/1

5:55 am-1:25 pm

1 stop14h 30m

$510

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 2/25

4:05 pm-7:05 pm

2 stops20h 00m

Budapest Ferenc Liszt Intl

Wed 3/4

12:20 pm-3:29 pm

2 stops34h 09m

$514

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 2/25

11:59 am-11:20 pm

2 stops28h 21m

Budapest Ferenc Liszt Intl

Wed 3/4

12:20 pm-11:48 pm

2 stops18h 28m

$523

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 2/25

4:05 pm-5:45 pm

2 stops18h 40m

Budapest Ferenc Liszt Intl

Wed 3/4

6:20 am-1:55 pm

1 stop14h 35m

$524

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Thu 2/26

4:40 pm-11:05 pm

2 stops23h 25m

Budapest Ferenc Liszt Intl

Thu 3/5

11:35 am-7:29 pm

2 stops38h 54m

$528

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 3/25

4:50 pm-5:45 pm

1 stop18h 55m

Budapest Ferenc Liszt Intl

Wed 4/1

5:55 am-1:25 pm

1 stop14h 30m

$534

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 4/8

3:30 pm-1:35 pm

1 stop15h 05m

Budapest Ferenc Liszt Intl

Tue 4/14

9:30 am-11:57 pm

2 stops21h 27m

$538

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Thu 2/26

4:05 pm-5:50 pm

2 stops18h 45m

Budapest Ferenc Liszt Intl

Thu 3/5

2:25 pm-1:55 pm

1 stop30h 30m

$561

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Thu 2/26

8:30 am-4:15 pm

2 stops24h 45m

Budapest Ferenc Liszt Intl

Mon 3/2

10:05 am-3:29 pm

2 stops36h 24m

$566

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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 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 $622.

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

You could potentially save up to 35% 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

14h 51m

Direct flights

None
The fastest flight from St. Louis to Budapest takes 14h 51m
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 14h 51m.

  • 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
7,709 reviews
Search Lufthansa flights
United AirlinesPriceFrom $578Free CancellationRating
7.4
9,144 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