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$349+ Cheap flights from Greenville to Casper (GSP - CPR)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — CPR
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Greenville to Casper

Discover tips and strategies to find the most affordable flight options for your journey from Greenville (GSP) to Casper (CPR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$349
(United Airlines)
From Greenville to Casper Natrona County
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Find flight deals from Greenville to Casper

Cheapest flights from Greenville to Casper
Explore the most affordable flight options available from Greenville to Casper. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/244:29 pmGSP - CPR
1 stop5h 48mUnited Airlines
Tue 10/285:30 amCPR - GSP
1 stop7h 29mUnited Airlines
Deal found 9/10$409
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/244:30 pmGSP - CPR
1 stop5h 50mUnited Airlines
Sun 9/281:32 pmCPR - GSP
1 stop23h 36mUnited Airlines
Deal found 9/10$553
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/266:01 pmGSP - CPR
2 stops17h 41mUnited Airlines
Tue 9/306:00 pmCPR - GSP
2 stops12h 51mUnited Airlines
Deal found 9/11$608

Cheapflights Fare Finder

 
Customize your flight search to find flights from Greenville to Casper that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Greenville to Casper that are best for you.

Fly from

Greenville

Fly to

Casper

Route

Depart

Return

Price

GreenvilleCasper

GSP - CPR

GSPCPR

Greenville

Sat 2/21

7:00 am-8:12 pm

2 stops15h 12m

Casper Natrona County

Tue 2/24

6:01 pm-9:49 am

2 stops13h 48m

$349

GreenvilleCasper

GSP - CPR

GSPCPR

Greenville

Fri 10/24

4:29 pm-8:17 pm

1 stop5h 48m

Casper Natrona County

Tue 10/28

5:30 am-2:59 pm

1 stop7h 29m

$409

GreenvilleCasper

GSP - CPR

GSPCPR

Greenville

Thu 2/19

6:00 am-8:12 pm

2 stops16h 12m

Casper Natrona County

Mon 2/23

6:01 pm-9:49 am

2 stops13h 48m

$434

GreenvilleCasper

GSP - CPR

GSPCPR

Greenville

Wed 9/24

4:30 pm-8:20 pm

1 stop5h 50m

Casper Natrona County

Sun 9/28

1:32 pm-3:08 pm

1 stop23h 36m

$553

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Best time to book a flight from Greenville to Casper

Have a flexible travel schedule? Discover the best time to fly to Casper from Greenville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Casper

Get insights into the airlines that provide service to Casper. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Casper. Reviews last updated September 11, 2025.
See what other customers who have flown with United Airlines from Greenville to Casper have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,937 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Greenville to Casper. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Greenville to Casper?

    Departing from Greenville to Casper will take you 15h 12m. The distance from Greenville to Casper is about 1409 mi.

  • Can I find deals for flights from Greenville to Casper that include hotel bookings?

    Yes. In addition to deals on Greenville to Casper flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Greenville to Casper?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Greenville to Casper.

  • Can I find deals for business class flights from Greenville to Casper?

    Yes. Cheapflights offers flight deals from Greenville to Casper by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Greenville to Casper?

    Currently, January is the cheapest month in which you can book a flight from Greenville to Casper (average of $348). Flying from Greenville to Casper in June is currently the most expensive (average of $500). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Casper?

Book flights to Casper if you plan to visit one of these locations
Rawlins

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Top airline flying from Greenville to Casper

Discover the top airline that operate flights from Greenville to Casper. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$258Average$343FlexibilityNo cancel feeOn-time69%

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