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

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

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

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

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

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

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

Yes. Flexible dates can save you up to 45% on flights from Seattle to Casper. Monday is the cheapest departure day at $343 round-trip on average, while Sunday is the most expensive at $618, a difference of $275. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

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

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 Seattle to Casper 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 $348 to $2,239. That means the highest observed fare was about 6x higher than the lowest one.

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

One-way fares from Seattle to Casper are currently lower than usual. Average one-way flight prices are about $332, which is 28% below the typical average for this route.

What is the time difference between Seattle and Casper?

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

What car rental options are available at Casper Natrona County Airport (CPR)?

Casper Natrona County Airport (CPR) hosts 5 major car rental companies, with daily rates averaging $82 for economy cars. Top options include: • Budget • Avis • Hertz • Enterprise Rent-A-Car • Alamo

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

Round-trip flights from Seattle to Casper range from $408 to $577, with an average of $478 over the past 12 months. Anything below $408 counts as a good deal.

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

Round-trip flights from Seattle to Casper typically range from $408 to $577. The lowest price found in the past 5 days was $348, on United Airlines.

What's the cheapest day of the week to fly from Seattle to Casper?

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Seattle to Casper. It’s 29% cheaper than the average day, while Sunday is the most expensive, with prices 29% higher.

What’s the cheapest month to fly from Seattle to Casper?

•January is the cheapest month to fly from Seattle to Casper at $343 round-trip. •December ($687) and November ($584) are the most expensive months. •The price difference between flying in the cheapest and most expensive months is 100% on average. This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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

United Airlines ($348) offered the cheapest round-trip ticket from Seattle to Casper in the last 5 days.

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

Flights via Denver Intl (DEN) offer the most affordable fares, with an average round-trip price of $503. Based on KAYAK data over the past 3 months.

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

Denver Intl (DEN) had the shortest average connection time for Seattle to Casper layovers at 3h 41m over the past 3 months.

$288 CHEAP FLIGHTS from Seattle to Casper (SEA - CPR)

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Cheapest round-trip

$348

Typical prices: $408-$577

United Airlines

Sun 11/18Fri 11/23

SEA - CPR • 1 stop

Cheapest one-way

$288

Typical prices: $263-$478

United Airlines

Sat 1/13

SEA - CPR • 1 stop

When to travel

January

Cheapest • 28% price drop

April

Most popular

Good to know

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We hope you love your trip to Casper!

Flight Deals

Cheap Flights from Seattle to Casper (SEA-CPR)

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

Round-trip

One-way

Recent round-trip flight deals from Seattle to Casper

Wed, Nov 18 - Mon, Nov 23

3:49 pm - 9:59 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

5h 10m1 stop Denver Intl

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

5h 32m1 stop Denver Intl

$348United Airlines

Wed, Nov 18 - Mon, Nov 23

5:05 am - 10:49 amSEA Seattle/Tacoma Intl-CPR Casper Natrona County

4h 44m1 stop Denver Intl

1:29 pm - 9:50 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

9h 21m2 stops Denver Intl Los Angeles

$354United Airlines

Sat, Nov 14 - Wed, Nov 18

8:30 am - 5:17 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

7h 47m1 stop Denver Intl

3:13 pm - 9:19 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

7h 06m1 stop Denver Intl

$378United Airlines

Fri, Nov 13 - Sun, Nov 15

12:45 pm - 8:32 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

6h 47m1 stop Denver Intl

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

5h 32m1 stop Denver Intl

$378United Airlines

Wed, Nov 11 - Sun, Nov 15

3:49 pm - 9:59 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

5h 10m1 stop Denver Intl

5:57 pm - 11:15 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

6h 18m1 stop Denver Intl

$378United Airlines

Tue, Nov 10 - Sat, Nov 14

3:49 pm - 9:59 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

5h 10m1 stop Denver Intl

3:13 pm - 9:19 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

7h 06m1 stop Denver Intl

$378United Airlines

Sat, Nov 14 - Wed, Nov 18

7:00 am - 5:17 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

9h 17m2 stops San Francisco Denver Intl

5:57 pm - 11:15 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

6h 18m1 stop Denver Intl

$384United Airlines

Fri, Nov 13 - Sun, Nov 15

8:30 am - 2:38 pmSEA Seattle/Tacoma Intl-CPR Casper Natrona County

5h 08m1 stop Denver Intl

5:15 am - 2:39 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

10h 24m2 stops Denver Intl San Francisco

$384United Airlines

Tue, Nov 10 - Sat, Nov 14

5:05 am - 10:49 amSEA Seattle/Tacoma Intl-CPR Casper Natrona County

4h 44m1 stop Denver Intl

5:15 am - 2:39 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

10h 24m2 stops Denver Intl San Francisco

$384United Airlines

Wed, Nov 11 - Sun, Nov 15

5:05 am - 10:49 amSEA Seattle/Tacoma Intl-CPR Casper Natrona County

4h 44m1 stop Denver Intl

5:15 am - 2:39 pmCPR Casper Natrona County-SEA Seattle/Tacoma Intl

10h 24m2 stops Denver Intl San Francisco

$384United Airlines

Booking Insights

Price, demand and travel trends for Seattle to Casper flights

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

Prices

Airlines

Layovers

How much is a round-trip flight from Seattle to Casper? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to Casper departing in november.
What's the cheapest day of the week to fly from Seattle to Casper?: Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Seattle to Casper. It’s 29% cheaper than the average day, while Sunday is the most expensive, with prices 29% higher.
What’s the cheapest month to fly from Seattle to Casper? KAYAK internal proprietary data takes all prices for each month over the last 12 months for round-trip flights from Seattle to Casper, removes the top 0.1% to account for outliers and then takes the median of all values for each month.: •January is the cheapest month to fly from Seattle to Casper at $343 round-trip.
•December ($687) and November ($584) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 100% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Low season	July
High season	April
Cheapest flight	$288

Beat the crowds with an average 50% drop in travelers.

The most popular month to fly with an average 58% increase in travelers.

One-way flight from Seattle to Casper

When to book flights from Seattle to Casper

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

What cabin classes can I book on flights from Seattle to Casper?
Only Economy Class is available on flights from Seattle to Casper.
Do I need a passport to fly from Seattle to Casper?
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.
How much should I expect to pay for a Seattle to Casper flight?
Round-trip flights from Seattle to Casper range from $408 to $577, with an average of $478 over the past 12 months. Anything below $408 counts as a good deal.
Have flight prices from Seattle to Casper 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 $348 to $2,239. That means the highest observed fare was about 6x higher than the lowest one.
How are flight prices from Seattle to Casper looking right now?
One-way fares from Seattle to Casper are currently lower than usual. Average one-way flight prices are about $332, which is 28% below the typical average for this route.
What car rental options are available at Casper Natrona County Airport (CPR)?
Casper Natrona County Airport (CPR) hosts 5 major car rental companies, with daily rates averaging $82 for economy cars. Top options include:

• Budget
• Avis
• Hertz
• Enterprise Rent-A-Car
• Alamo
Which airports can I use when flying from Seattle to Casper?
Flights from Seattle to Casper usually depart from Seattle/Tacoma Intl (SEA) and arrive at Casper Natrona County (CPR).
Which airports do connecting flights from Seattle to Casper pass through?
Most connecting flights from Seattle to Casper pass through Denver Intl (DEN), which handles 100% of one-stop traffic on this route.
Can I save money by using flexible dates for flights from Seattle to Casper?
Yes. Flexible dates can save you up to 45% on flights from Seattle to Casper. Monday is the cheapest departure day at $343 round-trip on average, while Sunday is the most expensive at $618, a difference of $275.

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 is the time difference between Seattle and Casper?
Casper is 1 hour ahead of Seattle (Mountain Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

If your dates are flexible, aim for a Monday departure and avoid flying on Sunday. On this route, Monday flights average $343, about $275 less than Sunday fares (44% savings) based on the last 12 months.
If you can choose when to travel, plan your Seattle to Casper trip for January. Fares historically average $343 round-trip in that month - typically $344 less than the most expensive month, which is December (based on the last 12 months).

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SEA - CPR

$288 Find Cheap Flights from Seattle to Casper - Compare and Save

Everything you should know

Cheap Flights from Seattle to Casper (SEA-CPR)

Recent round-trip flight deals from Seattle to Casper

Recent one-way flight deals from Seattle to Casper

Price, demand and travel trends for Seattle to Casper flights

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

What's the cheapest day of the week to fly from Seattle to Casper?

What’s the cheapest month to fly from Seattle to Casper?

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

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

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

Key details for Seattle to Casper flights

Low season

High season

Cheapest flight

When to book flights from Seattle to Casper

Your Seattle to Casper flight questions, answered

Your guide to booking Seattle to Casper flights

More options for your flight from Seattle to Casper

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

Information on your arrival and departure airports

Cabin class types available on flights from Seattle to Casper

Find direct flights to and from Seattle and Casper

Flights from domestic origins to Casper

Flights to other popular destinations

Find deals for your return flight