STL - BUD

$439 Find Cheap Flights from St. Louis to Budapest

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Budapest departing on 3/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Budapest

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Budapest, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Budapest, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$553
Typical prices: $748-$813
British Airways
Thu 1/29Sat 2/7
STL - BUD • 2 stops
Cheapest one-way
$439
American Airlines
Fri 3/20
STL - BUD • 2 stops
Top airlines
British Airways
Cheapest • from $553 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
October
Cheapest • 37% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Budapest!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Budapest (STL-BUD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Budapest that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Budapest

Thu, Jan 29 - Sat, Feb 7
British Airways Logo
11:05 am - 11:05 pm
STL
-
BUD
29h 00m2 stops
British Airways Logo
7:40 am - 10:44 pm
BUD
-
STL
22h 04m2 stops
$553British Airways
Thu, Jan 29 - Sun, Feb 8
British Airways Logo
5:04 pm - 11:05 pm
STL
-
BUD
23h 01m2 stops
British Airways Logo
10:55 am - 2:50 pm
BUD
-
STL
58h 55m2 stops
$559British Airways
Fri, Jan 23 - Tue, Jan 27
United Airlines Logo
9:57 am - 9:10 pm
STL
-
BUD
28h 13m2 stops
United Airlines Logo
6:05 am - 3:29 pm
BUD
-
STL
40h 24m2 stops
$564United Airlines
Thu, Jan 15 - Sun, Jan 18
American Airlines Logo
5:04 pm - 5:20 pm
STL
-
BUD
17h 16m2 stops
American Airlines Logo
6:55 am - 7:29 pm
BUD
-
STL
19h 34m2 stops
$567American Airlines
Fri, Jan 23 - Tue, Jan 27
United Airlines Logo
3:50 pm - 11:35 am
STL
-
BUD
12h 45m1 stop
United Airlines Logo
6:05 am - 7:27 pm
BUD
-
STL
20h 22m2 stops
$575United Airlines
Thu, Jan 15 - Sun, Jan 18
United Airlines Logo
11:20 am - 11:30 am
STL
-
BUD
17h 10m2 stops
United Airlines Logo
6:20 am - 1:55 pm
BUD
-
STL
14h 35m1 stop
$669United Airlines
Tue, May 12 - Tue, May 19
British Airways Logo
10:00 pm - 10:50 am
STL
-
BUD
29h 50m1 stop
British Airways Logo
6:20 pm - 7:30 pm
BUD
-
STL
32h 10m1 stop
$770British Airways
Tue, May 12 - Tue, May 19
British Airways Logo
10:00 pm - 5:35 pm
STL
-
BUD
12h 35m1 stop
British Airways Logo
11:40 am - 9:48 pm
BUD
-
STL
17h 08m2 stops
$776British Airways
Tue, May 12 - Tue, May 19
Delta Logo
2:18 pm - 5:50 pm
STL
-
BUD
20h 32m2 stops
Delta Logo
6:00 am - 4:40 pm
BUD
-
STL
17h 40m2 stops
$785Delta
Tue, May 12 - Tue, May 19
British Airways Logo
10:00 pm - 8:05 pm
STL
-
BUD
15h 05m1 stop
British Airways Logo
7:25 am - 7:30 pm
BUD
-
STL
19h 05m1 stop
$825British Airways
Booking Insights

KAYAK's insights & trends for St. Louis to Budapest flights

Get data-powered insights and trends into flights from St. Louis to Budapest to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from St. Louis to Budapest?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Budapest departing in January.

What’s the cheapest day of the week to fly from St. Louis to Budapest?

The average price of all round-trip flights from St. Louis to Budapest clicked on KAYAK for each day over the last 12 months.

For St. Louis to Budapest, Monday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Budapest back to St. Louis, the best deals are generally found on Thursday, with Friday being the most expensive.

What is the cheapest month to fly from St. Louis to Budapest?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Budapest, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Budapest is October, where tickets cost $616 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,592 and $1,182 respectively.

Good to know

Low seasonFebruary
Cheapest flight$439
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly with an average 63% increase in price.
Flight from St. Louis to Budapest

When to book flights from St. Louis to Budapest

Are your dates flexible? Find out the best times to travel from St. Louis to Budapest based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Budapest

  • What is the cheapest flight from St. Louis to Budapest?

    In the last 3 days, the lowest price for a flight from St. Louis to Budapest was $1,010 for a one-way ticket and $553 for a round-trip.

  • Do I need a passport to fly between St. Louis and Budapest?

    A passport is required to fly from St. Louis to Budapest.

  • Which airports will I be using when flying from St. Louis to Budapest?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Budapest, also known as Budapest Ferenc Liszt Intl.

  • Which aircraft models fly most regularly from St. Louis to Budapest?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Budapest?

    Star Alliance is the only airline alliance operating flights between St. Louis and Budapest.

  • Which is the best airline for flights from St. Louis to Budapest, United Airlines or Lufthansa?

    The two airlines most popular with KAYAK users for flights from St. Louis to Budapest are United Airlines and Lufthansa. With an average price for the route of $1,058 and an overall rating of 7.4, United Airlines is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $1,117 and an overall rating of 6.8.

  • How does KAYAK find such low prices on flights from St. Louis to Budapest?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Budapest.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Budapest?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Budapest from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Budapest?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Budapest with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and BUD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Budapest?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Budapest from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from St. Louis to Budapest

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Budapest. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Budapest? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9094 reviews
6.6Food
8.1Crew
7.7Boarding
7.3Comfort
7.1Entertainment
Airline reviews

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

10.0 ExcellentRoger, Dec 2025
CAE - ORD
Read more United Airlines reviews

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

United have really come back. Airport and boarding process is clear and good, app and information also very good

They charged a fee for 1st bag checked. Others in same party were free.

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

The movies offered were great. Staff were very pleasant and very efficient.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

Ground staff and cabin crew were excellent. Flight was perfectly on time. Zero issues.

Even after a delay, getting off the ground, thanks for keeping me safe, the airline made certain that my connecting flight was rebooked to get me to my final destination. It was actually rebooked twice, and my luggage still managed to meet me. The airline gave me a credit for food and beverage to be used at the airport vendors, regretfully, the credit did not transfer to my final boarding pass. Oh, well…

Trip was smooth, good drew, average meal, almost cold coffee. Excellent landing. Did not enjoy going down the stairs, walking to the gate, walking up the stairs, going a long walk to the exchange gate, and going down the stairs again to be bussed all the way where we originally landed to take our next flight! Over all an average experience. Thank you.

I booked extra leg room, due to seat neighbor i now consider extra shoulder and arm room as well. Seems like the seats shrink in width now The crew was very friendly and professional ( 100%). Food was good not great, breakfast was bad, a dry slice of bread would have been better. Facilities clean.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

love the crews and my only problem was the delay at Frankfurt was very bad. I have travelled with Lufthansa for over 30 years now and this was cost me some planned business appointment

The flight delay made the connection a bit tight but that's outside the flight crew's control.

We just made it to our connecting flight. A long, long speed walk!

We didn't get the coffee with breakfast in the morning.. 30 mins lazer I asked flight attendant why don't we get coffee now at least.. after the breakfast..she said that captain announced possible turbulences fee minutes ago, which didn't ecplain why we didn't get it with the breakfast..breakfast was very poor btw..just little pastry which you can eat in 4 little bites. Turbulences fortunately didn't even happen.. but we didn't get that more than necessary coffee in the morning after the night flight with very poor sleep.. They just served breakfast 1 hour afzer we took off..at like 11 PM.. that doesn't make sense at all.. Also, flight attendants weren't very nice..they looked like they're not happy with their job.. :/

Lufthansa still has a good level of quality compared to US airlines, especially with respect to (1) food quality - actually tasty, (2) good French red wine - free, (3) good movie selection. Also my ticket price includes 1 free check-in luggage, while some other budget airlines sneak in an extra $150 for a checkin.

Everything you need to know for your flight from St. Louis to Budapest

Information on your arrival and departure airports