$657 Find Cheap Flights from Casper to O'ahu

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Casper to O'ahu departing on 2/28. 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

Sat, Feb 28 - Wed, Mar 4
United Airlines Logo
6:08 pm - 1:19 pm
CPR
-
HNL
22h 11m
2 stops
United Airlines Logo
12:35 pm - 2:40 pm
HNL
-
CPR
23h 05m
2 stops
$657United Airlines
Sat, Feb 28 - Wed, Mar 4
United Airlines Logo
9:00 am - 9:21 pm
CPR
-
HNL
15h 21m
2 stops
United Airlines Logo
8:45 pm - 10:51 am
HNL
-
CPR
11h 06m
1 stop
$861United Airlines
Sat, Feb 28 - Wed, Mar 4
United Airlines Logo
1:20 pm - 9:06 pm
CPR
-
HNL
10h 46m
1 stop
United Airlines Logo
10:50 pm - 10:51 am
HNL
-
CPR
9h 01m
1 stop
$1,084United 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 $482, prices are generally cheapest when you fly direct.

Good to know

Low seasonSeptember
Cheapest flight$657
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly and prices are also 3% lower on average.
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 9229 reviews
7.3Comfort
7.1Entertainment
6.6Food
7.7Boarding
8.1Crew
Airline reviews

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

10.0 ExcellentJanaki, Feb 2026
PDX - SFO
Read more United Airlines reviews

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

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

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

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

Information on your arrival and departure airports