Cheap flights from St. Louis to Budapest from $324
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 4/7. 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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Fly from
Fly to
Route
Depart
Return
St. LouisBudapest
STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl
STLBUD
Lambert-St Louis
Wed 4/7
9:35 pm-12:10 am
1 stop19h 35m
Budapest Ferenc Liszt Intl
Wed 4/14
11:45 am-7:30 pm
1 stop14h 45m
St. LouisBudapest
STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl
STLBUD
Lambert-St Louis
Wed 4/7
9:35 pm-12:10 am
1 stop19h 35m
Budapest Ferenc Liszt Intl
Wed 4/14
12:05 pm-10:17 pm
2 stops17h 12m
St. LouisBudapest
STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl
STLBUD
Lambert-St Louis
Wed 2/10
10:45 am-4:25 pm
2 stops22h 40m
Budapest Ferenc Liszt Intl
Fri 2/12
6:40 am-1:45 pm
1 stop14h 05m
St. LouisBudapest
STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl
STLBUD
Lambert-St Louis
Wed 2/10
11:00 am-4:25 pm
2 stops22h 25m
Budapest Ferenc Liszt Intl
Fri 2/12
6:40 am-1:45 pm
1 stop14h 05m
St. LouisBudapest
STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl
STLBUD
Lambert-St Louis
Wed 2/10
6:06 am-4:25 pm
2 stops27h 19m
Budapest Ferenc Liszt Intl
Fri 2/12
6:40 am-1:45 pm
1 stop14h 05m
St. LouisBudapest
STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl
STLBUD
Lambert-St Louis
Sun 11/8
7:26 am-11:00 pm
2 stops32h 34m
Budapest Ferenc Liszt Intl
Tue 11/17
8:10 pm-8:26 pm
2 stops31h 16m
St. LouisBudapest
STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl
STLBUD
Lambert-St Louis
Fri 3/5
3:40 pm-1:40 pm
1 stop15h 00m
Budapest Ferenc Liszt Intl
Sun 3/14
6:40 am-1:45 pm
1 stop14h 05m
St. LouisBudapest
STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl
STLBUD
Lambert-St Louis
Fri 3/5
4:05 pm-11:40 pm
2 stops24h 35m
Budapest Ferenc Liszt Intl
Sun 3/14
6:40 am-1:45 pm
1 stop14h 05m
St. LouisBudapest
STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl
STLBUD
Lambert-St Louis
Sun 11/8
3:40 pm-5:50 pm
1 stop19h 10m
Budapest Ferenc Liszt Intl
Tue 11/17
11:40 am-3:26 pm
2 stops34h 46m
St. LouisBudapest
STL Lambert-St Louis - BUD Budapest Ferenc Liszt Intl
STLBUD
Lambert-St Louis
Sun 11/8
3:40 pm-11:00 am
1 stop12h 20m
Budapest Ferenc Liszt Intl
Tue 11/17
6:35 pm-1:45 pm
1 stop26h 10m
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 $634, 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.
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.
What is the cheapest airline that flies from Lambert-St Louis to Budapest Ferenc Liszt Intl?
Aer Lingus and British Airways are the most popular carriers operating from Lambert-St Louis to Budapest Ferenc Liszt Intl
What airlines fly to Budapest?
Lufthansa, United Airlines and British Airways are the top three most popular airlines that fly to Budapest from St. Louis according to our data. Lufthansa is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Budapest. Keep in mind that there are 3 different airlines that fly to Budapest on a routine basis, so you have a few additional options to choose from.
Which airport is the most popular layover for flights between St. Louis and Budapest?
Frankfurt am Main (FRA) was the most common stop: 91% of momondo users choosing 1-stop flights on this route connected there.
Which layover airport offers the lowest fares from St. Louis to Budapest?
Flights via London (LHR) offer the lowest average round-trip price of $886.
Which layover airport has the shortest travel time from St. Louis to Budapest?
Flights connecting via London (LHR) have the shortest average one-way travel time: 12h 15m.
Which layover airport has the shortest connection time from St. Louis to Budapest?
Philadelphia (PHL) has the shortest average layover time for this route: 2h 13m.
When to book flights from St. Louis to Budapest
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
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 15h 00m.
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?
As of October 2026, there are 3 operators available to choose from 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?
Based on momondo bookings for flights between St. Louis and Budapest, the leading airline is Lufthansa, making up 50% of the total bookings. Other popular airlines include United Airlines with 30% and British Airways with 20%.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $468 | Free Cancellation | Rating 6.8 8,272 reviews | |||
| PriceFrom $578 | Free Cancellation | Rating 7.4 10,317 reviews | |||
| PriceFrom $825 | Free Cancellation | Rating 6.7 8,255 reviews |
Traveling to a place near Budapest?
Book flights to Budapest if you plan to visit one of these locationsWhy 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.