Seattle

$120+ Cheap flights from Indianapolis to Seattle (IND - SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/18. Fares are subject to change and may not be available on all flights or dates of travel.
IND — SEA
Jun 17 — Jun 241
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Cheapflights Tip: The best prices from Indianapolis to Seattle/Tacoma Intl are usually found in February or April, booked 61 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Indianapolis to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Indianapolis (IND) to Seattle (SEA). 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 June 12, 2025.

Round-trip from

$241
(Southwest)

One-way from

$120
(Southwest)

Popular in

July

Cheapest in

February

Average price

$426

Good round-trip deal

$338 or less

Good one-way deal

$202 or less
From Indianapolis to Seattle/Tacoma Intl
One-way flight from Indianapolis to Seattle/Tacoma Intl
Highest demand for flights based on searches. 12% potential increase in price ($51 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in June 2025
Price to beat on a round-trip flight from Indianapolis to Seattle/Tacoma Intl.
Price to beat on a one-way flight from Indianapolis to Seattle/Tacoma Intl.

Find flight deals from Indianapolis to Seattle

Cheapest flights from Indianapolis to Seattle
Explore the most affordable flight options available from Indianapolis to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/117:55 pmIND - SEA
1 stop7h 35mSouthwest
Tue 7/229:10 pmSEA - IND
1 stop11h 10mSouthwest
Deal found 6/11$241
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/115:47 amIND - SEA
1 stop7h 51mAmerican Airlines
Mon 12/1511:45 amSEA - IND
1 stop7h 53mAmerican Airlines
Deal found 6/11$246
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Mon 7/75:38 pmIND - SEA
1 stop7h 59mUnited Airlines
Thu 7/105:00 amSEA - IND
1 stop6h 37mUnited Airlines
Deal found 6/10$249
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/97:43 amIND - SEA
1 stop10h 00mDelta
Wed 7/165:30 pmSEA - IND
1 stop9h 53mDelta
Deal found 6/10$256
This Hawaiian Airlines deal was found by Cheapflights users on 6/11. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/166:30 amIND - SEA
Nonstop4h 42mHawaiian Airlines
Fri 9/269:55 pmSEA - IND
Nonstop4h 15mHawaiian Airlines
Deal found 6/11$269
This FlightHub deal was found by Cheapflights users on 6/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/66:00 amIND - SEA
1 stop20h 42mFrontier
Sat 8/167:48 pmSEA - IND
1 stop25h 55mFrontier
Deal found 6/10$270
This CheapOair deal was found by Cheapflights users on 6/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1010:39 pmIND - SEA
1 stop20h 46mSpirit Airlines
Mon 7/145:30 pmSEA - IND
1 stop19h 40mSpirit Airlines
Deal found 6/10$271
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/126:48 pmIND - SEA
Nonstop4h 47mAlaska Airlines
Fri 8/159:45 pmSEA - IND
Nonstop4h 15mAlaska Airlines
Deal found 6/10$276
This FlightHub deal was found by Cheapflights users on 6/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/44:15 pmIND - SEA
1 stop25h 48mMultiple Airlines
Tue 7/156:25 amSEA - IND
1 stop15h 18mMultiple Airlines
Deal found 6/10$287
This Sun Country Air deal was found by Cheapflights users on 6/10. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/77:06 pmIND - SEA
1 stop15h 53mSun Country Air
Sat 7/1211:59 pmSEA - IND
1 stop12h 17mSun Country Air
Deal found 6/10$290

Cheapflights Fare Finder

Customize your flight search to find flights from Indianapolis to Seattle 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 June 12, 2025.
Use the filters below to find and compare flights from Indianapolis to Seattle that are best for you.

Fly from

Indianapolis

Fly to

Seattle

Route

Depart

Return

Price

IndianapolisSeattle

IND - SEA

INDSEA

Indianapolis

Fri 7/11

7:55 pm-12:30 am

1 stop7h 35m

Seattle/Tacoma Intl

Tue 7/22

9:10 pm-11:20 am

1 stop11h 10m

$241

IndianapolisSeattle

IND - SEA

INDSEA

Indianapolis

Wed 6/25

5:30 am-10:47 am

1 stop8h 17m

Seattle/Tacoma Intl

Thu 7/10

11:56 pm-11:10 am

1 stop8h 14m

$247

IndianapolisSeattle

IND - SEA

INDSEA

Indianapolis

Mon 7/7

5:38 pm-10:37 pm

1 stop7h 59m

Seattle/Tacoma Intl

Thu 7/10

5:00 am-2:37 pm

1 stop6h 37m

$249

IndianapolisSeattle

IND - SEA

INDSEA

Indianapolis

Wed 7/9

7:43 am-2:43 pm

1 stop10h 00m

Seattle/Tacoma Intl

Wed 7/16

5:30 pm-6:23 am

1 stop9h 53m

$256

IndianapolisSeattle

IND - SEA

INDSEA

Indianapolis

Tue 9/16

6:30 am-8:12 am

Nonstop4h 42m

Seattle/Tacoma Intl

Fri 9/26

9:55 pm-5:10 am

Nonstop4h 15m

$269

IndianapolisSeattle

IND - SEA

INDSEA

Indianapolis

Wed 8/6

6:00 am-11:42 pm

1 stop20h 42m

Seattle/Tacoma Intl

Sat 8/16

7:48 pm-12:43 am

1 stop25h 55m

$270

IndianapolisSeattle

IND - SEA

INDSEA

Indianapolis

Thu 7/10

10:39 pm-4:25 pm

1 stop20h 46m

Seattle/Tacoma Intl

Mon 7/14

5:30 pm-4:10 pm

1 stop19h 40m

$271

IndianapolisSeattle

IND - SEA

INDSEA

Indianapolis

Tue 8/12

6:48 pm-8:35 pm

Nonstop4h 47m

Seattle/Tacoma Intl

Fri 8/15

9:45 pm-5:00 am

Nonstop4h 15m

$276

IndianapolisSeattle

IND - SEA

INDSEA

Indianapolis

Fri 7/4

4:15 pm-3:03 pm

1 stop25h 48m

Seattle/Tacoma Intl

Tue 7/15

6:25 am-12:43 am

1 stop15h 18m

$287

IndianapolisSeattle

IND - SEA

INDSEA

Indianapolis

Mon 7/7

7:06 pm-7:59 am

1 stop15h 53m

Seattle/Tacoma Intl

Sat 7/12

11:59 pm-3:16 pm

1 stop12h 17m

$290

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 20 results
1
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The best insider tips for Indianapolis to Seattle flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Indianapolis to Seattle trip
Airports
IND

IND offers amazingly reliable Wi-Fi and plenty of charging stations, perfect for staying connected and getting work done before your flight.

Read more about INDby Barbara Noe Kennedy
SEA

Take the Link light rail from SEA to downtown Seattle for an inexpensive, convenient ride with ample luggage space, taking less than 40 minutes.

Read more about SEAby Brandon Schultz
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more
Barbara Noe Kennedy

Barbara Noe Kennedy

Expert on IND

Barbara Noe Kennedy

Barbara Noe Kennedy

Award-winning travel journalist Barbara Noe Kennedy writes about destinations around the world—but her heart is in her home state of Virginia, where she’s always researching her next travel story.

Read more

Best time to book a flight from Indianapolis to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Indianapolis 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.

Cheapflights Insights

Everything you need to know about your flight from Indianapolis to Seattle

How far ahead should I book a flight from Indianapolis to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Indianapolis to Seattle. Price data was last updated on June 9, 2025.

Booking 61 days in advance of your planned departure date is, on average, the best time to get cheap flights from Indianapolis to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Indianapolis to Seattle?

Currently, January is the cheapest month in which you can book a flight from Indianapolis to Seattle (average of $238). Flying from Indianapolis to Seattle in July is currently the most expensive (average of $391). 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.

What is the cheapest time of day to fly from IND to SEA?

Find hourly flight availability from Indianapolis to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

When flying from Indianapolis to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 52% versus a flight in the morning.

What is the cheapest day to fly from Indianapolis to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Indianapolis to Seattle. Price data was last updated on June 8, 2025.

Travelers seeking maximum savings on their Indianapolis to Seattle flight should consider departing on Thursday at noon when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated June 12, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Indianapolis to Seattle by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
8.0
Very good

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Indianapolis to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports do I use to fly from Indianapolis to Seattle?

    Booking a flight from Indianapolis (IND) to Seattle/Tacoma Intl (SEA) is your only option if you wish to fly from Indianapolis to Seattle. On a typical day, there are 2 flights from Indianapolis to Seattle/Tacoma Intl, all of which are around 4h 38m for a nonstop flight. You can also purchase a plane ticket from 9 airlines when you book a flight from Indianapolis to Seattle.

  • How popular is this Indianapolis to Seattle flight route?

  • What are the cheapest airlines flying from Indianapolis to Seattle round-trip?

    Cheapflights users have booked flights from Indianapolis to Seattle round-trip from $241. Other airlines that can offer you cheap pricing are American Airlines, from $247, and United Airlines, from $249. Southwest is priced at 33% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Indianapolis to Seattle one-way?

    The cheapest airline one-way is Southwest, with whom users have recently found tickets for as low as $120. However, be on the lookout for offers from United Airlines and Hawaiian Airlines, as they are both options that can get you from Indianapolis to Seattle for a low price.

  • What are the most reliable airlines from Indianapolis to Seattle?

    Before booking your flight to Seattle from Indianapolis, check out the most reliable airlines to get you to your destination on time: Finnair (76%), American Airlines (74%), Alaska Airlines( 74%).

  • What are the cheapest flights from Indianapolis to Seattle?

    Looking for the cheapest flight from Indianapolis to Seattle? While on average our users pay $818, our data indicates the cheapest price to be $145. The most popular route (Indianapolis - Seattle/Tacoma Intl), is priced around $181.

  • Where are the most common layover locations when flying from Indianapolis to Seattle?

  • What are some popular things to do or see while on a layover in Chicago?

    Chicago travelers tend to visit Magnificent Mile, River North, and Grant Park more than anywhere else. Magnificent Mile, River North, and Grant Park can be accessed by traveling approximately 15.5 mi, 15.0 mi, and 16.2 mi, respectively from Chicago O'Hare Intl. Travelers can book a car rental at Chicago O'Hare Intl for about $56 per day to make their sightseeing more efficient.

  • Where are the least popular layover locations for Indianapolis to Seattle flights?

  • Can I find deals for flights from Indianapolis to Seattle that include hotel bookings?

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

  • How can I find direct flights from Indianapolis to Seattle?

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

  • Can I find deals for business class flights from Indianapolis to Seattle?

    Yes. Cheapflights offers flight deals from Indianapolis to Seattle 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 Indianapolis to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Indianapolis to Seattle (average of $238). Flying from Indianapolis to Seattle in July is currently the most expensive (average of $391). 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 Indianapolis?

Book flights to Indianapolis if you plan to visit one of these locations
SeaTac
Tukwila
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Browse thousands of different options on Cheapflights for your next trip

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Top 9 airlines flying from Indianapolis to Seattle

Discover the top 9 airlines that operate flights from Indianapolis to Seattle. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$82Average$157FlexibilityNo cancel feeOn-time65%
FrontierCheapest$127Average$225FlexibilityNo cancel feeOn-time62%
DeltaCheapest$195Average$290FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$212Average$384FlexibilityNo cancel feeOn-time63%
Hawaiian AirlinesCheapest$216Average$382FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$220Average$406FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$222Average$345FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$258Average$407FlexibilityNo cancel feeOn-time75%
Sun Country AirCheapest$275Average$405FlexibilityNo cancel feeOn-time83%

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