$213 Find Cheap Flights from Idaho Falls to Europe - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Idaho Falls to Europe departing on 10/14. 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

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Flight Deals

Book Cheap Idaho Falls to Europe Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Idaho Falls to Europe 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 Idaho Falls to Europe

Mon, Nov 30 - Thu, Dec 3
United Airlines Logo
2:32 pm - 9:40 am
IDA
-
GVA
35h 08m
2 stops
United Airlines Logo
9:15 am - 9:28 am
GVA
-
IDA
32h 13m
2 stops
$765United Airlines
Mon, Nov 30 - Thu, Dec 3
United Airlines Logo
5:40 pm - 9:40 am
IDA
-
LHR
33h 00m
1 stop
United Airlines Logo
6:35 am - 9:28 am
LHR
-
IDA
33h 53m
2 stops
$840United Airlines
Mon, Nov 30 - Thu, Dec 3
United Airlines Logo
5:40 pm - 9:40 am
IDA
-
LHR
33h 00m
1 stop
United Airlines Logo
6:35 am - 9:28 am
LHR
-
IDA
33h 53m
2 stops
$841United Airlines
Thu, Aug 6 - Thu, Aug 13
KLM Logo
11:35 am - 11:10 am
IDA
-
SNN
16h 35m
2 stops
KLM Logo
1:05 pm - 6:20 pm
SNN
-
IDA
36h 15m
2 stops
$876KLM
Wed, Oct 7 - Tue, Oct 13
Alaska Airlines Logo
1:46 pm - 3:05 pm
IDA
-
LHR
18h 19m
1 stop
Alaska Airlines Logo
5:00 pm - 3:35 pm
LHR
-
IDA
29h 35m
1 stop
$890Alaska Airlines
Wed, Oct 7 - Tue, Oct 13
Alaska Airlines Logo
6:09 am - 3:05 pm
IDA
-
LHR
25h 56m
1 stop
Alaska Airlines Logo
5:00 pm - 3:35 pm
LHR
-
IDA
29h 35m
1 stop
$895Alaska Airlines
Thu, Aug 13 - Thu, Aug 20
American Airlines Logo
2:20 pm - 4:00 pm
IDA
-
BCN
17h 40m
2 stops
American Airlines Logo
10:45 am - 9:43 pm
BCN
-
IDA
18h 58m
1 stop
$915American Airlines
Fri, Aug 7 - Fri, Aug 14
American Airlines Logo
7:00 am - 11:45 am
IDA
-
ATH
19h 45m
1 stop
American Airlines Logo
2:00 pm - 1:50 pm
ATH
-
IDA
32h 50m
1 stop
$919American Airlines
Thu, Sep 3 - Sat, Sep 12
Multiple Airlines Logo
4:04 pm - 10:25 pm
IDA
-
BCN
22h 21m
2 stops
Multiple Airlines Logo
12:15 pm - 3:23 pm
BCN
-
IDA
35h 08m
2 stops
$978Multiple Airlines
Sat, Aug 8 - Sat, Aug 15
Multiple Airlines Logo
12:06 pm - 5:35 pm
IDA
-
BCN
21h 29m
2 stops
Multiple Airlines Logo
9:15 pm - 9:43 pm
BCN
-
IDA
32h 28m
2 stops
$1,214Multiple Airlines
Booking Insights

KAYAK's insights & trends for Idaho Falls to Europe flights

Get data-powered insights and trends into flights from Idaho Falls to Europe to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Idaho Falls to Europe?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Idaho Falls to Europe were found on United Airlines ($765) and KLM ($876).

Good to know

Cheapest flight$213
Flight from Idaho Falls to London

FAQs - booking Europe flights

  • How does KAYAK find such low prices on flights from Idaho Falls to Europe?

    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 Idaho Falls to Europe.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho Falls to Europe?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Idaho Falls to Europe 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 Idaho Falls to Europe?

    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 from Idaho Falls to Europe with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho Falls to Europe?

    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 from Idaho Falls to Europe up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Idaho Falls to Europe

 
Need help choosing which airline to fly with from Idaho Falls to Europe? 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 9893 reviews
7.7Boarding
7.3Comfort
7.1Entertainment
6.6Food
8.1Crew
Airline reviews

I was exhausted from a long day. The flight was smooth. The first flight during my 3 week travel that took off on time.

10.0 ExcellentAndra, Jun 2026
EWR - GSO
Read more United Airlines reviews

I was exhausted from a long day. The flight was smooth. The first flight during my 3 week travel that took off on time.

Agents at gate were not immediately available to solve problems and once they did they didn’t fix all the fight connections

1 flight cancelled Had to fly out of different city Flight at new departure city was delayed 3 hours causing us to miss connecting flights. By the time we did make it to Prague our luggage did not. Had to wait day and a half for luggage to be delivered. Customer service was not good. Agents did not arrive at gate until 5-10 minutes before boarding

I needed internet for critical matters and it never worked.

Awful. Delayed flights, missed connection to Toronto. Hotel vouchers were for already booked hotels x3. Giant waste of my time

Horrible I am at almost 2,000,000 miles on United. This was probably the worst flight ever. An hour and a half before takeoff I get a message that they’re changing the plane and I no longer have a seat in Polaris business Supposedly, there was a problem with the plane, but then there was no other plane Finally, they decided to bring a plane from Newark to Washington Dulles Of course the original flight was at 10:45 PM so by the time the plane got there it was 12:30 AM. It had not been cleaned. It had not been catered. They don’t really have people available to do those things when it’s not pre-programmed at 1 o’clock in the morning. The crew had to be changed And the new plane held 28 fewer people than the scheduled plane There is no way you can hate United Airlines enough The people at the gate were actually just fine, but it was management who was completely useless And did they send extra help to the people at the gate? Did they send supervisors? Of course not. Just don’t take United find somebody else or buy a boat

Read the fine print. This was my flight home. I booked my flight for the quickest way home. Had a carry-on and a personal item. Same as my outbound flight. Apparently I needed to pre-pay extra for my carry-on. When I checked in, I was told that I had to check it. I said I’ll pay for it, and was told that this wasn’t an option anymore. They said I still had to pay $50 to check my carry-on. I told them I’ll pay whatever to just carry it in as intended. I was not allowed, so eventually I paid $50 to check my carry-on under a plane that was half full, with overhead compartments that were even less full. My white carry-on suitcase was practically destroyed getting from Idaho falls to Denver to Orange County. The low price air fair was a bait and switch. Got me to the gate, made me pay extra, then didn’t even allow me to pay for a carry on. Not to mention that I paid the $8 for WiFi that didn’t work. All to get my suitcase destroyed. I don’t think I’m going to even keep my Untied mileage plus membership and card. Apparently, membership does not have its privileges for this one.

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

During landing. 2 crew members passed 3 times by my lane and didn't notice that people in front of us had their site to the furthermore reclined... That was uncomfortable and could have been dangerous.

United Airlines was fantastic, however, UnderPricer was a nightmare. I got to the airport 4 hours before my flight. We are moving to New Zealand so had quite a bit of baggage (16 checked items) and so wanted to have plenty of time to get everything taken care of properly. When I went to check in they (United) could only find a ticket for me. The 5 tickets for my children were never officially ticketed. I called Underpricer and they told me it was United's fault and United told me that Underpricer just needs to reissue the tickets, but they refused to. I asked the Underpricer agent to transfer me to his supervisor as I was not getting the help I needed. He told me the supervisor was busy but that he would call me back in 30 minutes. 30 minutes came and went with no phone call. After an hour I called Underpricer back but they would not let me talk to the person I had talked to before, just told me that he was talking with the supervisor and technical support. I called again an hour later, was told the same thing. I tried again later, with only about 30 minutes until my flight was scheduled to leave (meaning I had been at the airport for more than 3 hours with my 5 children trying to get ticketed and board the flight). Also, my husband had moved to New Zealand 3 months prior, I haven't seen him in 3 months, my children hadn't seen their dad in 3 months, we were all extremely eager to get on that flight and get to New Zealand. The situation with the tickets did not get resolved until after it was too late to check our luggage and board our flight. We were devastated. My 11 year old son was in tears at not being able to be on his way to see his dad. Thankfully we were rebooked for the next evening, but that night it felt devastating. We'd been at the airport for 4 hours waiting. My in-laws waited with me and then helped me reload all our baggage and took us home to stay with them for the night. On the newly booked flights we could not sit together - my children were spread throughout the plane. So, even though I had paid extra to select our seats after buying my seats from Underpricer only two of us were able to sit together (thankful that my 11 year old wasn't all by himself, but not happy that my 14 & 16 year old daughters were seated by strangers). I really feel that Underpricer should refund me what I paid for the seating ($120 USD). It was a very frustrating situation and I plan on never using Kayak or Underpricer ever again.

Everything you need to know for your flight to Europe

Information on your arrival and departure airports