STL - BUD

$483 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 8/31. 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

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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Flights 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

Wed, Oct 22 - Wed, Oct 29
United Airlines Logo
12:25 pm - 2:05 pmSTL-BUD
18h 40m2 stops
United Airlines Logo
6:20 am - 2:55 pmBUD-STL
14h 35m1 stop
$654United Airlines
Find Deal
Wed, Oct 22 - Wed, Oct 29
United Airlines Logo
12:25 pm - 2:05 pmSTL-BUD
18h 40m2 stops
United Airlines Logo
12:30 pm - 3:29 pmBUD-STL
32h 59m2 stops
$661United Airlines
Find Deal
Fri, Sep 5 - Wed, Sep 17
Lufthansa Logo
7:04 pm - 11:50 pmSTL-BUD
21h 46m2 stops
Lufthansa Logo
6:10 am - 1:30 pmBUD-STL
14h 20m1 stop
$695Lufthansa
Find Deal
Fri, Sep 5 - Wed, Sep 17
British Airways Logo
1:03 pm - 12:45 pmSTL-BUD
16h 42m2 stops
British Airways Logo
7:45 am - 9:06 pmBUD-STL
20h 21m2 stops
$714British Airways
Find Deal
Fri, Sep 12 - Fri, Sep 19
British Airways Logo
3:59 pm - 12:15 amSTL-BUD
25h 16m2 stops
British Airways Logo
7:10 am - 8:15 pmBUD-STL
20h 05m2 stops
$725British Airways
Find Deal
Fri, Sep 12 - Fri, Sep 19
United Airlines Logo
6:35 am - 10:35 amSTL-BUD
21h 00m2 stops
United Airlines Logo
6:00 am - 1:30 pmBUD-STL
14h 30m1 stop
$738United Airlines
Find Deal
Tue, Aug 12 - Sat, Aug 23
Lufthansa Logo
1:20 pm - 9:35 amSTL-BUD
13h 15m2 stops
Lufthansa Logo
9:25 am - 9:32 pmBUD-STL
19h 07m2 stops
$848Lufthansa
Find Deal
Wed, Oct 22 - Wed, Oct 29
Air Canada Logo
4:05 pm - 2:05 pmSTL-BUD
15h 00m2 stops
Air Canada Logo
6:20 am - 7:39 pmBUD-STL
19h 19m3 stops
$1,073Air Canada
Find Deal
Fri, Sep 12 - Fri, Sep 19
 Logo
4:05 pm - 8:45 amSTL-BUD
33h 40m3 stops
 Logo
6:15 am - 7:38 pmBUD-STL
20h 23m2 stops
$1,160
Find Deal
Fri, Sep 5 - Wed, Sep 17
 Logo
1:30 pm - 7:35 pmSTL-BUD
23h 05m3 stops
 Logo
6:40 pm - 7:38 pmBUD-STL
31h 58m3 stops
$1,217
Find Deal
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.

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 February, where tickets cost $715 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $1,592 and $1,345 respectively.

Good to know

Low seasonFebruary
Cheapest flight$483
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly with an average 43% 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 $483 for a one-way ticket and $654 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, and oneworld are the airline alliances operating flights between St. Louis and Budapest, with Star Alliance being the most commonly used for this route.

  • 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 $1,115 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 $1,134 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 8896 reviews
7.3Comfort
8.1Crew
7.7Boarding
6.6Food
7.1Entertainment
Airline reviews

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

8.0 ExcellentHal, Jul 2025IAD - MSY
Read more United Airlines reviews

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

The best airline I have ever travel , really good customer service, attention and service !!

United could have one single once of customer service. No human United employee would help me with the invalid mileage plus number, they said I had to speak with the computer.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

It was delayed instead of departing at 9:20pm, we departed at 11pm… putting us in Columbus after 2am! It was awful. Had I known about the delay, I could have spent some time in the United Lounge… I was starving because I started my journey in Budapest… so I was exhausted and hungry. Plus I had to make new arrangements to be picked up at the airport in Columbus, instead of midnight it was 2:30 am after getting luggage and out of airport. Not feasible. I would have just stayed in Chicago for the night and gotten a morning flight.

Insulting. Lufthansa flight from Munich to EWR had us getting our luggage when we were told in Florence that it would follow us to Indianapolis. It did not. Then very slow security in EWR caused me and three other passengers from Lufthansa flight from Munich to miss the boarding closure. Behind me were two elderly grandparents and their ten year old grandson. We were all refused entry on a plane to Indy that was still at the gate. The doors had not even closed inside the terminal yet. No apologies or compensation offered. Not even a meal voucher let alone a free hotel stay for our inconvenience. I m not sure what the other three passengers behind me did ( they were elderly with a grandson, recall), but I stated 12 hours overnight in a chilly EWR airport until next flight to Indy at 850 next morning.

The food could be better, more snacks. And have some plugs to chargue the phone.

The pasta in the evening meal was tasteless. Otherwise, the flight was okay.

Everything was really great just The aircraft was too old and sounded it will break during takeoff

Seating was average for a first class seat. It very modern. I expected better.

Took a long time to board. A long wait at the but taking us to the plain

Flight was a little late. The crew was courteous, food ok

Bad! Disaster!! The LH419 was cancelled after 4 hrs on board with no AC and no toilets

Poor food on flight between Toronto and Stockholm Airport Toronto too crowded

Extremely pleased with the crew. Best flight attendants ever! Very friendly, genuinely caring and attentive.

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

Information on your arrival and departure airports

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