$786 Find Cheap Flights from Casper to O'ahu - Compare and Save

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 8/27. 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

Thu, Aug 27 - Mon, Aug 31
United Airlines Logo
4:15 pm - 11:51 am
CPR
-
HNL
23h 36m
2 stops
United Airlines Logo
9:40 pm - 9:59 pm
HNL
-
CPR
20h 19m
2 stops
$786United Airlines
Thu, Jul 16 - Thu, Jul 23
United Airlines Logo
6:13 pm - 11:53 am
CPR
-
HNL
21h 40m
2 stops
United Airlines Logo
9:40 pm - 8:33 pm
HNL
-
CPR
18h 53m
2 stops
$851United Airlines
Fri, Nov 6 - Tue, Nov 10
United Airlines Logo
7:00 am - 4:34 pm
CPR
-
HNL
12h 34m
1 stop
United Airlines Logo
11:30 pm - 6:37 pm
HNL
-
CPR
16h 07m
2 stops
$961United Airlines
Fri, Nov 6 - Tue, Nov 10
United Airlines Logo
9:10 am - 4:34 pm
CPR
-
HNL
10h 24m
1 stop
United Airlines Logo
4:15 pm - 10:53 am
HNL
-
CPR
15h 38m
2 stops
$980United Airlines
Thu, Aug 27 - Mon, Aug 31
United Airlines Logo
11:24 am - 7:15 pm
CPR
-
HNL
11h 51m
1 stop
United Airlines Logo
9:40 pm - 10:49 am
HNL
-
CPR
9h 09m
1 stop
$1,074United Airlines
Thu, Jul 16 - Thu, Jul 23
United Airlines Logo
9:26 am - 7:44 pm
CPR
-
HNL
14h 18m
2 stops
United Airlines Logo
7:40 pm - 8:51 am
HNL
-
CPR
9h 11m
1 stop
$1,079United Airlines
Fri, Nov 6 - Tue, Nov 10
United Airlines Logo
7:00 am - 4:34 pm
CPR
-
HNL
12h 34m
1 stop
United Airlines Logo
8:25 pm - 10:53 am
HNL
-
CPR
11h 28m
1 stop
$1,084United Airlines
Thu, Aug 27 - Mon, Aug 31
United Airlines Logo
1:26 pm - 7:15 pm
CPR
-
HNL
9h 49m
1 stop
United Airlines Logo
5:43 pm - 10:49 am
HNL
-
CPR
13h 06m
2 stops
$1,102United 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 $338, prices are generally cheapest when you fly direct.

Find deals

Good to know

Cheapest flight$786
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 9859 reviews
7.7Boarding
6.6Food
8.1Crew
7.1Entertainment
7.3Comfort
Airline reviews

Very easy ! Use the kiosk and bag drop and right to security within 10 min

10.0 ExcellentJoanne, Jun 2026
DEN - ORD
Read more United Airlines reviews

Very easy ! Use the kiosk and bag drop and right to security within 10 min

Checking bag at terminal was horrible. No agents to check us in and only 1 kiosk working. Boarding went ok. Crew onboard was very scattered rained. Missed our row while serving and then didn’t see them hardly again.

Crew was amazing, takeoff wonderful. The bathroom was disgusting from before takeoff the odor made the flight uncomfortable as you could smell the bathroom from the center of the plane where we were sitting. Smelled like raw sewage. My daughter was throwing up as we landed due to the smell and horrible turbulence as we approached Newark.

Airline tickets are not cheap. You expect reliable competent service. Thanks to canceled flights and botched transfers we arrived at our destination two days late. This is not acceptable

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

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

Information on your arrival and departure airports

Casper (CPR)