$136 Find Cheap Flights from Newark Liberty Airport to Idaho

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Newark to Idaho departing on 1/14. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Newark to Idaho, 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 Newark to Idaho, as well as popular online travel agencies
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Cheap Flights from Newark to Idaho

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boise
Boise1 stop$266
Idaho Falls
Idaho Falls2 stops$360
Hailey
Hailey1 stop$308
Spokane
Spokane1 stop$300
Boise
Boise1 stop$266
Idaho Falls
Idaho Falls2 stops$360
Hailey
Hailey1 stop$308
Spokane
Spokane1 stop$300

Book Cheap Newark to Idaho Plane Tickets

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

Thu, Jan 29 - Thu, Feb 5
Hawaiian Airlines Logo
6:08 pm - 10:52 am
EWR
-
BOI
18h 44m1 stop
Hawaiian Airlines Logo
6:23 am - 6:24 pm
BOI
-
EWR
10h 01m1 stop
$266Hawaiian Airlines
Wed, Feb 25 - Tue, Mar 3
United Airlines Logo
7:30 am - 4:07 pm
EWR
-
BOI
10h 37m1 stop
United Airlines Logo
2:40 pm - 11:24 pm
BOI
-
EWR
6h 44m1 stop
$289United Airlines
Wed, Jan 28 - Tue, Feb 3
Delta Logo
6:00 am - 12:30 pm
EWR
-
BOI
8h 30m1 stop
Delta Logo
11:20 am - 11:40 pm
BOI
-
EWR
10h 20m2 stops
$294Delta
Wed, Jan 28 - Tue, Feb 3
Delta Logo
6:00 am - 4:17 pm
EWR
-
BOI
12h 17m2 stops
Delta Logo
5:45 am - 7:19 pm
BOI
-
EWR
11h 34m2 stops
$299Delta
Wed, Feb 11 - Tue, Feb 17
Alaska Airlines Logo
6:08 pm - 12:23 am
EWR
-
GEG
9h 15m1 stop
Alaska Airlines Logo
7:05 am - 6:28 pm
GEG
-
EWR
8h 23m1 stop
$300Alaska Airlines
Tue, Feb 24 - Tue, Mar 3
Alaska Airlines Logo
5:30 pm - 11:01 pm
EWR
-
GEG
8h 31m1 stop
Alaska Airlines Logo
5:00 am - 6:28 pm
GEG
-
EWR
10h 28m2 stops
$307Alaska Airlines
Wed, Jan 7 - Mon, Jan 12
American Airlines Logo
7:00 am - 12:46 pm
EWR
-
SUN
7h 46m1 stop
American Airlines Logo
8:09 am - 10:59 pm
SUN
-
EWR
12h 50m2 stops
$314American Airlines
Tue, Jan 6 - Tue, Jan 13
American Airlines Logo
6:59 am - 1:53 pm
EWR
-
BOI
8h 54m1 stop
American Airlines Logo
12:37 pm - 11:21 pm
BOI
-
EWR
8h 44m1 stop
$319American Airlines
Thu, Feb 19 - Mon, Feb 23
Multiple Airlines Logo
10:25 pm - 3:31 pm
EWR
-
IDA
19h 06m2 stops
Multiple Airlines Logo
10:31 pm - 11:47 pm
IDA
-
EWR
23h 16m3 stops
$360Multiple Airlines
Fri, Feb 20 - Mon, Feb 23
Multiple Airlines Logo
5:59 am - 3:31 pm
EWR
-
IDA
11h 32m2 stops
Multiple Airlines Logo
10:31 pm - 11:47 pm
IDA
-
EWR
23h 16m3 stops
$367Multiple Airlines
Booking Insights

KAYAK's insights & trends for Newark to Idaho flights

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

What is the cheapest month to fly from Newark Airport to Idaho?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Newark Airport to Idaho, 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 Newark Airport to Idaho is July, when tickets cost $333 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $613 and $563 respectively.

What’s the cheapest day of the week to fly from Newark Liberty Airport to Idaho?

The average price of all round-trip flights from Newark Airport to Idaho clicked on KAYAK for each day over the last 12 months.

For Newark Liberty Airport to Idaho, Tuesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Idaho back to Newark Liberty Airport, the best deals are generally found on Wednesday, with Sunday being the most expensive.

How far in advance should I book a flight from Newark Airport to Idaho?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Newark Airport to Idaho, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Newark Airport to Idaho, you should book around 3 weeks before departure, which saves you about 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonDecember
Cheapest flight$136
Best time to beat the crowds but there is an average 52% increase in price.
Most popular time to fly with an average 3% increase in price.
Flight from Newark Liberty Airport to Spokane

FAQs - booking Idaho flights

  • How does KAYAK find such low prices on flights from Newark Liberty Airport to Idaho?

    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 Newark Liberty Airport to Idaho.

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

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

    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 Newark Liberty Airport to Idaho 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 Newark Liberty Airport to Idaho?

    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 Newark Liberty Airport to Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Idaho?

    The cheapest time of day to fly to Idaho is generally in the afternoon, when round-trip flights cost $502 on average. Morning departures are around 6% cheaper than evening flights, on average. The most expensive time of day to fly to Idaho is generally in the evening, which is peak travel time and where the average cost of a ticket is $572.

Reviews of the top 4 airlines serving from Newark to Idaho

 
See real verified KAYAK customer reviews for airlines flying from Newark to Idaho. 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 Newark to Idaho? 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.
8.0
Alaska AirlinesOverall score based on 11469 reviews
8.1Boarding
7.0Entertainment
7.8Comfort
7.1Food
8.5Crew
Airline reviews

I don’t think Alaska coordinates with Kayak. I did not get a “check-in” email inviting me to check in 24 hours in advance. Had to wait 20+ minutes to get a wheel chair.

8.0 ExcellentAnonymous, Dec 2025
JFK - SFO
Read more Alaska Airlines reviews

I don’t think Alaska coordinates with Kayak. I did not get a “check-in” email inviting me to check in 24 hours in advance. Had to wait 20+ minutes to get a wheel chair.

The delays were awful and the constant gate changes were annoying and the forceful bag checking was rude.

First Class seats had no more legroom then Premium Economy. There was no working WiFi or entertainment. I would have rather paid $400 more and flown on United for the 6 hours from EWR to SFO.

I wish my checked suitcase could have been checked since I arrived an hour before take off .

The cabin crew on this team was particularly kind and excellent.

Overall the flight was on-time and plane ride very comfortable. The free snacks not so good - only a small bag of pretzels and no milk. I wanted milk. There was not entertainment on the plane unless I wanted to download their APP. But I would consider flying with them again and be more prepared on my part with food and entertainment.

Great, but their check-in sinage is not clear and wastes folks' time.

I had to change my flight due to son-in-law being in hospital. It cost me an extra $210.00. I bought insurance when I purchased my tickets. They have done nothing about it!!!!! I filed a claim and they tried to close it without even so much as ask any questions. This is the worst flight insurance ever. I am still fighting it!! My next step is to get a lawyer involved. You should push the insurance with a company that’s worth it! This makes it on you as well since your selling it.

Alaska is the best! I had my own row, complimentary wine, friendly flight attendants, free texting, and early arrival. Coach felt like 1st class. What more could I ask for?

This time it is good, no delay and right on time

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

I truly love flying with Delta. They have always treated me with the upmost respect

The flight was great. The gate location was way to far away!!!

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

I believe that a four-hour trip should have a meal. Delta had none.

Was charged for my luggage despite having been on one ticket from an international flight. Too tired to argue after 15 hours on flight. Was charged for rechecking it at JFK airport. Not sure why those off Kenya Airways were required to do that.

Great experience on Delta. Staff from baggage check to flight attendants were very courteous and professional. My only issue was a personal preference for pretzels instead of the chips and cookies that were offered.

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

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.

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

Flight was timely, relatively comfortable, with decent entertainment and food served. Only problem encountered was with the free messaging which I highly appreciate, but it did not work from iphone to non-iphones.

This flight was perfect. No complaints and only the highest regard for the crew and ground staff and how they executed perfectly. I fly a lot with United and would request predictability and transparency in their operations instead of last minute changes.

Survey sent before we actually left. Delay after delay. Now a crew problem.

I love flying with United. Unfortunately, I flew on an older plane with minimal upgraded technology (no Bluetooth functionality or handy charging ports). Otherwise, the flight was great and even arrived early.

They changed my seats after I checked in and I was stressed from the time I saw that information until just before boarding, when the gate attendant fixed it, but it shouldn't have happened. And if it couldn't be prevented, then the people on the phone I spoke with should have done something to help, which they did not, nor did they offer me compensation, just meaningless apologies.

Smooth flight, especially take off and landing, and great crew on board. Really loved the stroopwaffles!

Deplaning was delayed because of Jetbridge equipment issues in MKE, causing an issue on an otherwise great flight.

Not really their fault, but a 4.5 hour delay is pretty brutal

Baggage handling poor. Second time this has happened. My bag went to San Francisco instead of Fiji. No apology. Luckily Nadi airport staff are fantastic. My bag arrived in Fiji the next day.

They only offered water for Group 6. Awful announcements from the Crew. Couldn't understand a single word. Barely came by for the trash afterwards. Man, I love water for a premium flight. Wow. Water in a cup.

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

The comfort of the seats was great, the crew eased my child’s anxieties and the fact that I had full cans of my beverage choice was great.

My flight got switched and my prepaid bag didnt transfer over properly so I paid to check ANOTHER BAG. I was placed in a middle seat and it was just miserable. At least it was a bulkhead row so I had legroom. The flight just never seem3d to end

This was a horrible experience. For a first class experience, my chair was held together by 3M tape - and I have a photo. The crew weren’t very attentive, somewhat dismissive and forgot my drink and snack, the chair reclined about 3 inches on a 6-hour cross country flight. I was also not informed that there was no lounge available in Newark airport because of renovations, so all around this was one of the worst experiences and I would actively avoid both American and Alaska Air going forward.

I’m impressed that we were on time in Sacramento after having a late departure in Newark and our made it. The staff was friendly and warm.

Waited on the runway for takeoff for 2.5 hours. Air traffic rerouted us. The plane didn't have enough fuel, so had to go back to the gate. Had to wait for a new pilot. Should have landed at 5:22. Didn't land until 9:10. Trash flight.

There were five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

Delays on all NY flights. There was no communication on why but they didn’t say it was weather. Other carriers were not delayed.

Everything you need to know for your flight from Newark to Idaho

Information on your arrival and departure airports