$597 Find Cheap Flights from Casper to O'ahu

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Casper to O'ahu departing on 6/21. 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 O'ahu

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Casper to O'ahu, 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 Casper to O'ahu, as well as popular online travel agencies
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Flight Deals

Book Cheap Casper to O'ahu Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Casper to O'ahu 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 Casper to O'ahu

Wed, May 27 - Tue, Jun 2
United Airlines Logo
6:13 pm - 11:53 am
CPR
-
HNL
21h 40m
2 stops
United Airlines Logo
3:15 pm - 10:46 am
HNL
-
CPR
15h 31m
2 stops
$825United Airlines
Thu, May 28 - Tue, Jun 2
United Airlines Logo
6:13 pm - 11:43 am
CPR
-
HNL
21h 30m
2 stops
United Airlines Logo
3:15 pm - 12:42 pm
HNL
-
CPR
17h 27m
2 stops
$842United Airlines
Tue, May 26 - Tue, Jun 2
United Airlines Logo
8:45 am - 9:38 pm
CPR
-
HNL
16h 53m
2 stops
United Airlines Logo
1:00 pm - 10:46 am
HNL
-
CPR
17h 46m
2 stops
$844United Airlines
Wed, May 27 - Sun, May 31
United Airlines Logo
6:13 pm - 11:53 am
CPR
-
HNL
21h 40m
2 stops
United Airlines Logo
3:15 pm - 12:42 pm
HNL
-
CPR
17h 27m
2 stops
$856United Airlines
Sat, May 30 - Wed, Jun 3
United Airlines Logo
8:45 am - 9:43 pm
CPR
-
HNL
16h 58m
2 stops
United Airlines Logo
3:15 pm - 10:46 am
HNL
-
CPR
15h 31m
2 stops
$867United Airlines
Thu, May 28 - Mon, Jun 1
United Airlines Logo
6:13 pm - 11:43 am
CPR
-
HNL
21h 30m
2 stops
United Airlines Logo
3:15 pm - 12:42 pm
HNL
-
CPR
17h 27m
2 stops
$872United Airlines
Thu, May 14 - Mon, May 18
United Airlines Logo
6:10 pm - 11:54 am
CPR
-
HNL
21h 44m
2 stops
United Airlines Logo
9:40 pm - 10:10 pm
HNL
-
CPR
20h 30m
2 stops
$901United Airlines
Fri, May 29 - Wed, Jun 3
United Airlines Logo
11:21 am - 7:13 pm
CPR
-
HNL
11h 52m
1 stop
United Airlines Logo
1:00 pm - 10:46 am
HNL
-
CPR
17h 46m
2 stops
$944United Airlines
Tue, May 26 - Sun, May 31
United Airlines Logo
5:15 am - 6:35 pm
CPR
-
HNL
17h 20m
2 stops
United Airlines Logo
3:15 pm - 12:42 pm
HNL
-
CPR
17h 27m
2 stops
$947United Airlines
Tue, Sep 1 - Wed, Sep 2
United Airlines Logo
5:15 am - 7:48 pm
CPR
-
HNL
18h 33m
2 stops
United Airlines Logo
9:40 pm - 7:14 pm
HNL
-
CPR
17h 34m
2 stops
$1,000United Airlines
Booking Insights

KAYAK's insights & trends for Casper to O'ahu flights

Get data-powered insights and trends into flights from Casper to O'ahu to help you find the cheapest flights, the best time to fly and much more.

Can I save money by flying with a layover from Casper to O'ahu?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $408, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Casper to O'ahu?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Casper to O'ahu, 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 Casper to O'ahu is January, when tickets cost $0 (return) on average. On the other hand, the most expensive months are December and November, when the average cost of round-trip tickets is $1,144 and $1,122 respectively.

Find deals

Good to know

Cheapest flight$597
Flight from Casper to Honolulu

FAQs - booking O'ahu flights

  • How does KAYAK find such low prices on flights from Casper to O'ahu?

    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 Casper to O'ahu.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Casper to O'ahu?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Casper to O'ahu 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 Casper to O'ahu?

    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 Casper to O'ahu 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 Casper to O'ahu?

    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 Casper to O'ahu 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 Casper to O'ahu

 
See real verified KAYAK customer reviews for airlines flying from Casper to O'ahu. 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 Casper to O'ahu? 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 9677 reviews
6.6Food
7.1Entertainment
7.3Comfort
8.1Crew
7.7Boarding
Airline reviews

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

4.0 OkayMichael, Apr 2026
SNA - DEN
Read more United Airlines reviews

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

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

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

Everything you need to know for your flight to O'ahu

Information on your arrival and departure airports

Casper (CPR)