BOS - CPR

$438 Find Cheap Flights from Boston to Casper - 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 Boston to Casper departing on 9/4. 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 Casper

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Casper, 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 Boston to Casper, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$438
United Airlines
Fri 9/4Sun 9/13
BOS - CPR • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Boston and Casper. You'll need at least 1 connection.
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We hope you love your trip to Casper!
Flight Deals
Useful Info
Flight Deals

Cheap Flights from Boston to Casper (BOS-CPR)

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

Fri, Sep 4 - Sun, Sep 13
United Airlines Logo
11:55 am - 8:27 pm
BOS
-
CPR
10h 32m
1 stop
United Airlines Logo
6:05 pm - 5:59 am
CPR
-
BOS
9h 54m
1 stop
$438United Airlines
Fri, Sep 4 - Sun, Sep 13
United Airlines Logo
11:55 am - 8:27 pm
BOS
-
CPR
10h 32m
1 stop
United Airlines Logo
6:05 pm - 10:18 am
CPR
-
BOS
14h 13m
2 stops
$444United Airlines
Sat, Aug 22 - Mon, Aug 31
United Airlines Logo
7:05 am - 7:09 pm
BOS
-
CPR
14h 04m
2 stops
United Airlines Logo
6:05 pm - 9:48 am
CPR
-
BOS
13h 43m
2 stops
$449United Airlines
Wed, Jul 15 - Sat, Jul 25
United Airlines Logo
9:40 am - 7:10 pm
BOS
-
CPR
11h 30m
1 stop
United Airlines Logo
6:13 pm - 5:58 am
CPR
-
BOS
9h 45m
1 stop
$499United Airlines
Wed, Jul 15 - Sat, Jul 25
United Airlines Logo
9:40 am - 7:10 pm
BOS
-
CPR
11h 30m
1 stop
United Airlines Logo
6:13 pm - 9:51 am
CPR
-
BOS
13h 38m
2 stops
$504United Airlines
Wed, Jul 1 - Fri, Jul 10
United Airlines Logo
8:15 am - 7:10 pm
BOS
-
CPR
12h 55m
2 stops
United Airlines Logo
8:45 am - 11:59 pm
CPR
-
BOS
13h 14m
2 stops
$509United Airlines
Wed, Jul 1 - Fri, Jul 10
United Airlines Logo
8:15 am - 7:10 pm
BOS
-
CPR
12h 55m
2 stops
United Airlines Logo
6:13 pm - 5:58 am
CPR
-
BOS
9h 45m
1 stop
$554United Airlines
Wed, Jul 1 - Fri, Jul 10
United Airlines Logo
9:40 am - 7:10 pm
BOS
-
CPR
11h 30m
1 stop
United Airlines Logo
6:13 pm - 5:58 am
CPR
-
BOS
9h 45m
1 stop
$559United Airlines
Wed, Jul 1 - Fri, Jul 10
United Airlines Logo
9:40 am - 7:10 pm
BOS
-
CPR
11h 30m
1 stop
United Airlines Logo
1:23 pm - 1:14 am
CPR
-
BOS
9h 51m
2 stops
$565United Airlines
Thu, Aug 6 - Wed, Aug 12
United Airlines Logo
9:40 am - 7:10 pm
BOS
-
CPR
11h 30m
1 stop
United Airlines Logo
7:05 am - 7:55 pm
CPR
-
BOS
10h 50m
1 stop
$599United Airlines
Useful Info

KAYAK's insights & trends for Boston to Casper flights

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

How long does a flight from Boston to Casper take?

This flight route requires at least one stop and takes a minimum of 6h 02m.

Good to know

Cheapest flight$438
Flight from Boston to Casper

When to book flights from Boston to Casper

Are your dates flexible? Find out the best times to travel from Boston to Casper based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Casper

  • What is the cheapest flight from Boston to Casper?

    In the last 5 days, the lowest price for a flight from Boston to Casper was $438 for a round-trip ticket.

  • Do I need a passport to fly between Boston and Casper?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Boston to Casper?

    Boston airport is called Boston Logan Intl and the only airport in Casper is Casper Natrona County.

  • Which aircraft models fly most regularly from Boston to Casper?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boston to Casper?

    Star Alliance is the only airline alliance operating flights between Boston and Casper.

  • How does KAYAK find such low prices on flights from Boston to Casper?

    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 Boston to Casper.

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

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

    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 to Casper with an airline and back to Boston with another airline. Booking your flights between Boston and CPR can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Casper?

    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 to Casper from Boston 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 Boston to Casper

 
See real verified KAYAK customer reviews for airlines flying from Boston to Casper. 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 Boston to Casper? 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 9831 reviews
7.1Entertainment
7.7Boarding
7.3Comfort
6.6Food
8.1Crew
Airline reviews

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

10.0 ExcellentKati, Jun 2026
DEN - DFW
Read more United Airlines reviews

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.

The pilot had to extend the flight time from san antonio to Houston to burn off fuel. This caused a lot of unnecessary stress since we had a tight connection to Aruba. And with no other flights going to Aruba we were worried about spending a night in Houston. We had to to run to our connection because of the flight crews mistake. Not happy.

Service was professional and quick. Premium economy seat was comfortable given the class

I'm a United 1K member and have ben for 10 years. The gate agent had no control over the boarding process and had us passengers queued for hours as delays were announced. On the plane, the overhead air nozzle was broken so col over was powering through on me and the passenger next to me. Not a great experience for a million miler on United. Feel free to contact me. Josh Smigel - DM426089

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

The staff was extremely helpful and friendly at all times! They went above and beyond to get us into an earlier flight in San Diego to make our connection in SFO possible, because our original flight did actually not make it! I did so much appreciate the UA team and how they made this possible. We also didn’t have seats together on the long flight to Singapore, but they found us seats together last moment with no additional cost! Nobody sat next to us, so that we were able to sleep! Thanks to UA for improving their service and Underpricer for booking this trip! Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future

Everything you need to know for your flight from Boston to Casper

Information on your arrival and departure airports