$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 4/14. 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$289
Idaho Falls
Idaho Falls1 stop$323
Hailey
Hailey1 stop$401
Lewiston
Lewiston2 stops$463
Twin Falls
Twin Falls1 stop$556
Pocatello
Pocatello2 stops$758
Spokane
Spokane1 stop$297
Boise
Boise1 stop$289
Idaho Falls
Idaho Falls1 stop$323
Hailey
Hailey1 stop$401
Lewiston
Lewiston2 stops$463
Twin Falls
Twin Falls1 stop$556
Pocatello
Pocatello2 stops$758
Spokane
Spokane1 stop$297

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

Tue, Apr 14 - Tue, Apr 21
United Airlines Logo
8:00 am - 3:24 pm
EWR
-
BOI
9h 24m
1 stop
United Airlines Logo
6:15 am - 4:04 pm
BOI
-
EWR
7h 49m
1 stop
$289United Airlines
Sat, Apr 18 - Sat, Apr 25
Alaska Airlines Logo
4:30 pm - 11:59 pm
EWR
-
GEG
10h 29m
1 stop
Alaska Airlines Logo
7:41 pm - 6:39 am
GEG
-
EWR
7h 58m
1 stop
$297Alaska Airlines
Wed, Apr 8 - Tue, Apr 14
Delta Logo
5:29 am - 11:37 am
EWR
-
GEG
9h 08m
1 stop
Delta Logo
7:38 pm - 9:29 am
GEG
-
EWR
10h 51m
2 stops
$302Delta
Sat, Apr 25 - Sat, May 2
Alaska Airlines Logo
3:30 pm - 11:02 pm
EWR
-
BOI
9h 32m
1 stop
Alaska Airlines Logo
6:08 pm - 6:39 am
BOI
-
EWR
10h 31m
1 stop
$307Alaska Airlines
Tue, Apr 28 - Sat, May 2
Delta Logo
6:30 pm - 11:57 pm
EWR
-
BOI
7h 27m
1 stop
Delta Logo
3:23 pm - 11:34 pm
BOI
-
EWR
6h 11m
1 stop
$309Delta
Tue, Apr 14 - Tue, Apr 21
Delta Logo
11:30 am - 8:00 pm
EWR
-
BOI
10h 30m
2 stops
Delta Logo
11:35 pm - 9:29 am
BOI
-
EWR
7h 54m
1 stop
$314Delta
Wed, Apr 15 - Tue, Apr 28
Delta Logo
6:05 am - 1:04 pm
EWR
-
GEG
9h 59m
1 stop
Delta Logo
5:10 pm - 6:00 am
GEG
-
EWR
9h 50m
1 stop
$317Delta
Wed, May 6 - Wed, May 13
American Airlines Logo
6:35 am - 12:49 pm
EWR
-
BOI
8h 14m
1 stop
American Airlines Logo
1:29 pm - 11:00 pm
BOI
-
EWR
7h 31m
1 stop
$324American Airlines
Sat, Apr 25 - Sat, May 2
American Airlines Logo
12:20 pm - 11:39 pm
EWR
-
IDA
13h 19m
2 stops
American Airlines Logo
7:48 am - 11:35 pm
IDA
-
EWR
13h 47m
2 stops
$359American Airlines
Thu, Jul 9 - Sat, Jul 18
United Airlines Logo
1:10 pm - 6:58 pm
EWR
-
SUN
7h 48m
1 stop
United Airlines Logo
8:15 am - 8:16 pm
SUN
-
EWR
10h 01m
1 stop
$403United 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 April, when tickets cost $390 (return) on average. On the other hand, the most expensive months are June and February, when the average cost of round-trip tickets is $552 and $550 respectively.

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 4 weeks before departure, which saves you about 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$136
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly with an average 4% increase in price.
Flight from Newark Liberty Airport to Boise

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.

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.
7.9
Alaska AirlinesOverall score based on 12051 reviews
8.1Boarding
8.5Crew
7.8Comfort
7.1Food
7.0Entertainment
Airline reviews

nothing for delays and refuse service.when asked for the second flight. the first is good though

4.0 OkayAnonymous, Mar 2026
EWR - PDX
Read more Alaska Airlines reviews

nothing for delays and refuse service.when asked for the second flight. the first is good though

The front desk attendant was rude to everyone in an absolutely careless way.

The boarding process could be clearer, there's never a call for group f

We left late; had to land in Minneapolis unscheduled to refuel and then landed in interior instead of lax at 2am......

good, no complaints but nothing to rave about. It was fine

we bought Mediterranean boxes for lunch. The salami in mine had gone bad long ago, but my partner had good salami and could eat it. Could I buy assigned seats? I guess that I didn't spend enough, so sat at the back of the plane

I understand it’s their right, but when two of my party missed the flight after checking in it seemed insensitive to cancel all of their subsequent flights and for us to lose the extra seating despite having paid for it @ the very least we could’ve been refunded for the checked bags that we prepaid for and never used.

Every thing is on time, boarding, landing nice and smooth. But No tv? No food for 6 hours flight?

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 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.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Delayed. Hot. Passenger next to me was so large I couldn’t move.

The flight went very well, but the flight attendants didn't serve and food or drinks other than 1st class due to rough air but to be honest it wasn't that bumpy and I felt that they could've at least offered water and coffee perhaps. Also serving 1st class only is a bad look. I've been in 1st class many times and I would've felt that if the turbulence was too rough for the main cabin, it would be too rough for 1st class too.

There was an unruly family behind us that made the short flight miserable!!! The cabin crew did nothing to contain it.

My seatback screen didn’t work so that sucked because that’s what I was going to do on the plane.

The whole experience was excellent. As it most often is with Delta

There’s not much to say about a one hour flight. This is a connection from LA to RNO that I missed the previous night due to a mechanical check delay on my originating flight from JFK to LAX. The short flight itself was fine. Instructions from the pilot and crew were per usual. The coffee was barely lukewarm, which possibly was purposeful so we would down it quickly. Bags were already on carousel upon reaching baggage claim, which was excellent.

Flight crew issues delayed my flight by 2 1/2 hours. Causing me to miss my connection.

Boarding and crew were fantastic, but I paid for a window seat with no window. Seat 11D on a CRJ-900 apparently does not have a window. Lesson learned.

Delta flights recently are always delayed AND at jfk tney get the gates further away (need To walk 20’ to get to them/all the way at the end of the terminal). Not sure whats happening but price doesnt match experience!

Everything went well except the turbulence what no one have a control of but pilot and crew handled very good!

Much better than Spirit. I was please by the easy fast check in and boarding

The attendant on board was amazing. She should be doing business/first international long haul.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

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.

There was no inflight service. Once we landed we were delayed to find a gate for an hour and a half which was 1/2 the total time in the air.

The gate agent had a really bad attitude and refused to help me get on the standby list. She just handed me a card and said I needed to call a number. I asked her to help with the AA app on my phone and she just shrugged and said she didnt know. After a few phone calls, I eventually just went to a different gate agent on the other side of the terminal and got the help I needed.

One day, I do so hope for a gluten free snack! Seems like with the rest of the world FINALLY figuring out what gluten free is, American Airlines would too. Fingers crossed!!

I am very appreciative of the help provided to me by Dennis and Whitney. I had lost my phone at EWR airport and they were very kind in assisting me. This included advice on how to file a report and also helping me connect with family. The pilot was also great about keeping passengers updated on the flight progress with regular communications over the system.

I would like the crew to talk LESS over the PA and specifically about credit card offers. I am trying to work, sleep, watch a movie and the PA was booming about a credit card offer. Could we go back to the days when the customer was more important than selling a credit card?

My seat tv didn’t work the whole trip. And the seat space is too small despite being seated at the front.

On the plus side, crew was attentive, drinks were cold, and in-flight entertainment selection was better than some other airlines. On the negative aide, Plane was delayed almost an hour, either no announcements from the gate crew. Biscoff cookies are gross, appreciate airlines that give a choice. Also, crew had no personality or enthusiasm at all.

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!

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

Information on your arrival and departure airports