Which airports can I use when flying from Casper to Seattle?

Flights from Casper to Seattle usually depart from Casper Natrona County (CPR) and arrive at Seattle/Tacoma Intl (SEA).

What cabin classes can I book on flights from Casper to Seattle?

Only Economy Class is available on flights from Casper to Seattle.

Which airports do connecting flights from Casper to Seattle pass through?

Most connecting flights from Casper to Seattle pass through Denver Intl (DEN), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.

Can I save money by using flexible dates for flights from Casper to Seattle?

Yes. Being flexible with your travel dates can save you up to 62% on the Casper to Seattle route. Friday is the cheapest departure day at $326 round-trip on average, while Sunday is the most expensive at $837, a difference of $511. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

What popular places can I visit in Seattle?

Some of the most popular sights in Seattle are Pike Place Market, Pier 66 and Lumen Field. These are among the most viewed places in Seattle on KAYAK.

Do I need a passport to fly from Casper to Seattle?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Have flight prices from Casper to Seattle changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $308 to $1,185. That means the highest observed fare was about 4x higher than the lowest one.

How are flight prices from Casper to Seattle looking right now?

One-way fares from Casper to Seattle are currently lower than usual. Average one-way flight prices are about $364, which is 16% below the typical average for this route.

What is the time difference between Casper and Seattle?

Seattle is 1 hour behind Casper (Pacific Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?

Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates starting from around $4 for economy cars. Top options include: • Fox • Europcar • Thrifty • Budget • Dollar

How much should I expect to pay for a Casper to Seattle flight?

Round-trip flights from Casper to Seattle range from $326 to $658, with an average of $432 over the past 12 months. Anything below $326 counts as a good deal.

What is the cheapest airline to fly from Casper to Seattle?

United Airlines ($308) offered the cheapest round-trip ticket from Casper to Seattle in the last 5 days.

What is the cheapest layover airport when flying from Casper to Seattle?

Flights via Denver Intl (DEN) offer the most affordable fares, with an average round-trip price of $448. Based on KAYAK data over the past 3 months.

When flying from Casper to Seattle which airport offers the shortest layover?

Denver Intl (DEN) had the shortest average connection time for Casper to Seattle layovers at 207 minutes over the past 3 months.

$268 CHEAP FLIGHTS from Casper to Seattle (CPR - SEA)

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$308

Typical prices: $326-$658

United Airlines

Sat 11/10Sat 11/17

CPR - SEA • 1 stop

Cheapest one-way

$268

Typical prices: $313-$488

United Airlines

Tue 10/23

CPR - SEA • 1 stop

When to travel

September

Cheapest • 37% price drop

January

Most popular

Good to know

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We hope you love your trip to Seattle!

Flight Deals

Cheap Flights from Casper to Seattle (CPR-SEA)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Casper to Seattle

Tue, Nov 10 - Tue, Nov 17

5:15 am - 9:47 amCPR Casper Natrona County-SEA Seattle/Tacoma Intl

5h 32m1 stop Denver Intl

5:05 am - 12:48 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

6h 43m1 stop Denver Intl

$308United Airlines

Tue, Nov 10 - Tue, Nov 17

1:29 pm - 8:47 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

8h 18m2 stops Denver Intl San Francisco

12:45 pm - 6:53 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

5h 08m1 stop Denver Intl

$314United Airlines

Tue, Oct 13 - Tue, Oct 20

3:11 pm - 9:15 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

7h 04m1 stop Denver Intl

5:00 am - 12:39 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

6h 39m1 stop Denver Intl

$328United Airlines

Sat, Oct 17 - Sat, Oct 24

1:20 pm - 5:37 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

5h 17m1 stop Denver Intl

5:00 am - 12:39 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

6h 39m1 stop Denver Intl

$328United Airlines

Fri, Oct 16 - Mon, Oct 19

11:23 am - 4:03 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

5h 40m1 stop Denver Intl

5:00 am - 12:39 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

6h 39m1 stop Denver Intl

$328United Airlines

Sat, Oct 17 - Sat, Oct 24

1:20 pm - 9:03 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

8h 43m2 stops Denver Intl San Francisco

5:00 am - 12:39 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

6h 39m1 stop Denver Intl

$334United Airlines

Tue, Sep 29 - Sat, Oct 3

5:15 am - 11:46 amCPR Casper Natrona County-SEA Seattle/Tacoma Intl

7h 31m1 stop Denver Intl

5:00 am - 12:39 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

6h 39m1 stop Denver Intl

$358United Airlines

Tue, Oct 13 - Tue, Oct 20

8:00 am - 3:33 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

8h 33m2 stops Denver Intl Los Angeles

5:00 am - 12:39 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

6h 39m1 stop Denver Intl

$359United Airlines

Tue, Sep 29 - Sat, Oct 3

3:11 pm - 9:15 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

7h 04m1 stop Denver Intl

1:22 pm - 10:04 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

7h 42m2 stops San Francisco Denver Intl

$364United Airlines

Fri, Oct 16 - Mon, Oct 19

1:20 pm - 9:59 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

9h 39m2 stops Denver Intl Los Angeles

5:00 am - 10:48 amSEA Seattle/Tacoma Intl-CPR Casper Natrona County

4h 48m1 stop Denver Intl

$379United Airlines

Recent last minute flight deals from Casper to Seattle

Fri, Sep 18 - Sun, Sep 20

8:45 am - 1:22 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

5h 37m1 stop Denver Intl

5:00 am - 10:49 amSEA Seattle/Tacoma Intl-CPR Casper Natrona County

4h 49m1 stop Denver Intl

$398United Airlines

Mon, Sep 21 - Mon, Oct 5

7:05 am - 9:51 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

15h 46m2 stops Denver Intl Los Angeles

6:30 am - 8:17 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

12h 47m2 stops Los Angeles Denver Intl

$464United Airlines

Mon, Sep 21 - Tue, Sep 29

8:45 am - 9:51 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

14h 06m2 stops Denver Intl Los Angeles

5:00 am - 12:45 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

6h 45m1 stop Denver Intl

$474United Airlines

Mon, Sep 21 - Thu, Oct 1

10:01 am - 9:51 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

12h 50m2 stops Denver Intl Los Angeles

5:00 am - 12:39 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

6h 39m1 stop Denver Intl

$474United Airlines

Mon, Sep 21 - Wed, Sep 30

7:05 am - 9:51 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

15h 46m2 stops Denver Intl Los Angeles

5:00 am - 12:39 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

6h 39m1 stop Denver Intl

$474United Airlines

Mon, Sep 21 - Fri, Oct 2

8:45 am - 9:51 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

14h 06m2 stops Denver Intl Los Angeles

2:27 pm - 8:17 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

4h 50m1 stop Denver Intl

$474United Airlines

Mon, Sep 21 - Sat, Oct 3

7:05 am - 7:14 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

13h 09m2 stops Denver Intl Los Angeles

3:55 pm - 10:04 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

5h 09m1 stop Denver Intl

$474United Airlines

Sun, Sep 20 - Mon, Oct 5

5:15 am - 12:20 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

8h 05m2 stops Denver Intl San Francisco

6:30 am - 8:17 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

12h 47m2 stops Los Angeles Denver Intl

$479United Airlines

Fri, Sep 18 - Sun, Sep 20

10:01 am - 8:43 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

11h 42m2 stops Denver Intl San Francisco

5:00 am - 2:46 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

8h 46m1 stop Denver Intl

$484United Airlines

Sun, Sep 20 - Fri, Oct 2

5:15 am - 12:20 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

8h 05m2 stops Denver Intl San Francisco

2:27 pm - 8:17 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

4h 50m1 stop Denver Intl

$489United Airlines

Booking Insights

Price, demand and travel trends for Casper to Seattle flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Casper to Seattle with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Casper to Seattle?

Round-trip flights from Casper to Seattle start at $308. Prices are below average for this route right now, with typical round-trip fares ranging from $326 to $658. The lowest price found in the past 5 days was $308 on United Airlines.

Find deals

Low season	April
High season	January
Cheapest flight	$268

Best time to beat the crowds but there is an average 52% increase in price.

Flight from Casper to Seattle

When to book flights from Casper to Seattle

Are your dates flexible? Find out the best times to travel from Casper to Seattle 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.

Which airports can I use when flying from Casper to Seattle?
Flights from Casper to Seattle usually depart from Casper Natrona County (CPR) and arrive at Seattle/Tacoma Intl (SEA).
What cabin classes can I book on flights from Casper to Seattle?
Only Economy Class is available on flights from Casper to Seattle.
Which airports do connecting flights from Casper to Seattle pass through?
Most connecting flights from Casper to Seattle pass through Denver Intl (DEN), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.
Can I save money by using flexible dates for flights from Casper to Seattle?
Yes. Being flexible with your travel dates can save you up to 62% on the Casper to Seattle route. Friday is the cheapest departure day at $326 round-trip on average, while Sunday is the most expensive at $837, a difference of $511. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
What popular places can I visit in Seattle?
Some of the most popular sights in Seattle are Pike Place Market, Pier 66 and Lumen Field. These are among the most viewed places in Seattle on KAYAK.
Do I need a passport to fly from Casper to Seattle?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.
Have flight prices from Casper to Seattle changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $308 to $1,185. That means the highest observed fare was about 4x higher than the lowest one.
How are flight prices from Casper to Seattle looking right now?
One-way fares from Casper to Seattle are currently lower than usual. Average one-way flight prices are about $364, which is 16% below the typical average for this route.
What is the time difference between Casper and Seattle?
Seattle is 1 hour behind Casper (Pacific Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.
What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?
Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates starting from around $4 for economy cars. Top options include:
• Fox
• Europcar
• Thrifty
• Budget
• Dollar
How much should I expect to pay for a Casper to Seattle flight?
Round-trip flights from Casper to Seattle range from $326 to $658, with an average of $432 over the past 12 months. Anything below $326 counts as a good deal.

If your dates can be flexible, aim for a Friday departure instead of Sunday. On this route, Friday flights average $326 - about $511 less than Sunday (61% savings) based on the last 12 months.
If you can choose when to travel, plan your Casper to Seattle trip for September. Fares historically average $273 round-trip in that month - typically $564 less than the most expensive month, which is December (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.
- Seattle Airport Marriott
- Coast Gateway Hotel
- Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport

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CPR - SEA

$268 Find Cheap Flights from Casper to Seattle - Compare and Save

Everything you should know

Cheap Flights from Casper to Seattle (CPR-SEA)

Recent round-trip flight deals from Casper to Seattle

Recent one-way flight deals from Casper to Seattle

Recent last minute flight deals from Casper to Seattle

Price, demand and travel trends for Casper to Seattle flights

How much is a round-trip flight from Casper to Seattle?

What is the cheapest airline to fly from Casper to Seattle?

What is the cheapest layover airport when flying from Casper to Seattle?

When flying from Casper to Seattle which airport offers the shortest layover?

Key details for Casper to Seattle flights

Low season

High season

Cheapest flight

When to book flights from Casper to Seattle

Your Casper to Seattle flight questions, answered

Your guide to booking Casper to Seattle flights

More options for your flight from Casper to Seattle

Complete your trip to Seattle with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Casper to Seattle

Find direct flights to and from Casper and Seattle

Flights from domestic origins to Seattle

Flights to other popular destinations

Find deals for your return flight