$91+ Cheap flights from Indianapolis to Seattle (IND - SEA)
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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
IND — SEA
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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Find cheap flights from Indianapolis to Seattle with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Indianapolis to Seattle/Tacoma Intl are usually found in January or February, booked 56 days in advance, depart on a Wednesday or Tuesday and return on a Saturday
Cheap flight deals from Indianapolis to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Indianapolis to SeattleExplore 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 September 10, 2026.
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 September 10, 2026.
This Southwest deal was found by Cheapflights users on 9/6. 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.
Wed 10/213:10 pm -
2 stops9h 35m
Wed 10/285:35 am -
2 stops9h 55m
Deal found 9/6![Southwest logo]()
$317
This Southwest deal was found by Cheapflights users on 9/5. 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.
Wed 11/182:40 pm -
2 stops10h 35m
Sun 11/228:30 am -
1 stop11h 35m
Deal found 9/5![Southwest logo]()
$318
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/224:12 pm -
1 stop25h 56m
Fri 10/24:27 pm -
2 stops23h 26m
Deal found 9/5![Frontier logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:59 pm -
2 stops22h 13m
Wed 10/2812:14 pm -
1 stop25h 15m
Deal found 9/7![Multiple Airlines logo]()
$322
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/123:58 pm -
1 stop26h 14m
Tue 10/204:27 pm -
1 stop19h 46m
Deal found 9/5![Frontier logo]()
$323
This CheapOair deal was found by Cheapflights users on 9/5. 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.
Fri 9/254:12 pm -
1 stop25h 56m
Sat 10/34:27 pm -
1 stop19h 50m
Deal found 9/5![Frontier logo]()
$324
This CheapOair deal was found by Cheapflights users on 9/6. 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.
Fri 10/163:58 pm -
1 stop26h 14m
Mon 10/194:27 pm -
1 stop19h 46m
Deal found 9/6![Frontier logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/224:08 pm -
2 stops20h 40m
Mon 10/264:27 pm -
1 stop19h 41m
Deal found 9/7![Frontier logo]()
$326
This Delta deal was found by Cheapflights users on 9/7. 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.
Sat 10/247:00 am -
1 stop6h 59m
Wed 10/283:00 pm -
1 stop6h 05m
Deal found 9/7![Delta logo]()
$327
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:56 pm -
1 stop21h 12m
Wed 9/304:27 pm -
1 stop24h 34m
Deal found 9/10![Frontier logo]()
$329
This United Airlines deal was found by Cheapflights users on 9/9. 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 10/303:11 pm -
2 stops9h 08m
Sun 11/17:00 am -
1 stop6h 23m
Deal found 9/9![United Airlines logo]()
$330
This CheapOair deal was found by Cheapflights users on 9/8. 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.
Mon 9/284:12 pm -
1 stop25h 56m
Fri 10/24:27 pm -
1 stop19h 50m
Deal found 9/8![Frontier logo]()
$332
Best flights from Indianapolis to SeattleDiscover carefully curated flight deals from Indianapolis to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from Indianapolis to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
This United Airlines deal was found by Cheapflights users on 9/5. 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 10/26:23 pm -
1 stop8h 03m
Sun 10/411:13 pm -
1 stop6h 03m
Deal found 9/5![United Airlines logo]()
$327
This Delta deal was found by Cheapflights users on 9/8. 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.
Fri 10/27:28 pm -
1 stop7h 27m
Sun 10/43:00 pm -
1 stop6h 04m
Deal found 9/8![Delta logo]()
$327
This Southwest deal was found by Cheapflights users on 9/7. 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.
Sat 10/317:20 am -
2 stops13h 55m
Sat 11/710:40 am -
2 stops9h 35m
Deal found 9/7![Southwest logo]()
$342
This Delta deal was found by Cheapflights users on 9/5. 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.
Thu 10/157:20 am -
1 stop9h 14m
Sun 10/1811:10 pm -
1 stop9h 22m
Deal found 9/5![Delta logo]()
$327
This United Airlines deal was found by Cheapflights users on 9/9. 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 10/76:00 am -
1 stop9h 23m
Sun 10/1111:13 pm -
1 stop6h 03m
Deal found 9/9![United Airlines logo]()
$338
This Delta deal was found by Cheapflights users on 9/7. 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.
Fri 11/68:11 am -
1 stop9h 34m
Thu 11/121:35 pm -
1 stop7h 34m
Deal found 9/7![Delta logo]()
$327
This Southwest deal was found by Cheapflights users on 9/5. 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.
Thu 11/56:10 am -
2 stops10h 45m
Mon 11/95:30 am -
2 stops10h 10m
Deal found 9/5![Southwest logo]()
$388
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Thu 11/268:00 am -
2 stops11h 26m
Tue 12/17:00 am -
1 stop6h 22m
Deal found 9/8![United Airlines logo]()
$382
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 11/51:40 pm -
2 stops11h 10m
Tue 11/1010:40 am -
2 stops10h 07m
Deal found 9/9![United Airlines logo]()
$387
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Sat 10/105:32 pm -
1 stop8h 25m
Fri 10/1611:13 pm -
1 stop6h 03m
Deal found 9/8![United Airlines logo]()
$391
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 10/221:49 pm -
1 stop8h 03m
Mon 10/264:39 pm -
2 stops14h 09m
Deal found 9/9![United Airlines logo]()
$412
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Thu 11/196:00 am -
2 stops11h 39m
Mon 11/304:39 pm -
2 stops13h 30m
Deal found 9/6![United Airlines logo]()
$437
Last-minute flights from Indianapolis to SeattleDiscover last-minute flight deals from Indianapolis to Seattle. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Indianapolis to Seattle. Data last updated September 10, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/224:12 pm -
1 stop25h 56m
Fri 10/24:27 pm -
2 stops23h 26m
Deal found 9/5![Frontier logo]()
$321
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:56 pm -
1 stop21h 12m
Wed 9/304:27 pm -
1 stop24h 34m
Deal found 9/10![Frontier logo]()
$329
This CheapOair deal was found by Cheapflights users on 9/5. 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.
Fri 9/254:12 pm -
1 stop25h 56m
Sat 10/34:27 pm -
1 stop19h 50m
Deal found 9/5![Frontier logo]()
$324
This CheapOair deal was found by Cheapflights users on 9/8. 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.
Mon 9/284:12 pm -
1 stop25h 56m
Fri 10/24:27 pm -
1 stop19h 50m
Deal found 9/8![Frontier logo]()
$332
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/123:58 pm -
1 stop26h 14m
Tue 10/204:27 pm -
1 stop19h 46m
Deal found 9/5![Frontier logo]()
$323
This CheapOair deal was found by Cheapflights users on 9/6. 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.
Fri 10/163:58 pm -
1 stop26h 14m
Mon 10/194:27 pm -
1 stop19h 46m
Deal found 9/6![Frontier logo]()
$325
This Southwest deal was found by Cheapflights users on 9/6. 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.
Wed 10/213:10 pm -
2 stops9h 35m
Wed 10/285:35 am -
2 stops9h 55m
Deal found 9/6![Southwest logo]()
$317
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/224:08 pm -
2 stops20h 40m
Mon 10/264:27 pm -
1 stop19h 41m
Deal found 9/7![Frontier logo]()
$326
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:59 pm -
2 stops22h 13m
Wed 10/2812:14 pm -
1 stop25h 15m
Deal found 9/7![Multiple Airlines logo]()
$322
This Delta deal was found by Cheapflights users on 9/7. 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.
Sat 10/247:00 am -
1 stop6h 59m
Wed 10/283:00 pm -
1 stop6h 05m
Deal found 9/7![Delta logo]()
$327
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:25 pm -
2 stops22h 47m
Sat 10/314:27 pm -
1 stop20h 41m
Deal found 9/7![Frontier logo]()
$333
This United Airlines deal was found by Cheapflights users on 9/9. 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 10/303:11 pm -
2 stops9h 08m
Sun 11/17:00 am -
1 stop6h 23m
Deal found 9/9![United Airlines logo]()
$330
One-way flights from Indianapolis to SeattleSearch for one-way flight options from Indianapolis to Seattle. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way flight options from Indianapolis to Seattle. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Super.com deal was found by Cheapflights users on 9/9. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/64:12 pm -
1 stop25h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$91
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/84:25 pm -
1 stop26h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/54:12 pm -
1 stop25h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:59 pm -
2 stops22h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Frontier logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:52 pm -
2 stops46h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Frontier logo]()
$111
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:52 pm -
2 stops46h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$128
This CheapOair deal was found by Cheapflights users on 9/9. 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.
Fri 10/303:58 pm -
1 stop26h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$131
Find 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 September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $317 (Kiwi.com) |
One-way from | $91 (Super.com) |
Popular in | July |
Cheapest in | January |
Average price | $395 |
Good round-trip deal | $435 or less |
Good one-way deal | $248 or less |
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 7,457,451 searches. Data last updated September 10, 2026.
Use the filters below to find and compare flights from Indianapolis to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
IndianapolisSeattle
IND Indianapolis - SEA Seattle/Tacoma Intl
INDSEA
Indianapolis
Sat 10/24
6:00 am-12:20 pm
1 stop9h 20m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$149
IndianapolisSeattle
IND Indianapolis - SEA Seattle/Tacoma Intl
INDSEA
Indianapolis
Sat 11/7
4:33 pm-8:50 pm
1 stop7h 17m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$154
IndianapolisSeattle
IND Indianapolis - SEA Seattle/Tacoma Intl
INDSEA
Indianapolis
Tue 12/8
3:12 pm-9:21 pm
2 stops9h 09m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$159
IndianapolisSeattle
IND Indianapolis - SEA Seattle/Tacoma Intl
INDSEA
Indianapolis
Thu 11/5
12:12 pm-6:35 pm
1 stop9h 23m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$164
IndianapolisSeattle
IND Indianapolis - SEA Seattle/Tacoma Intl
INDSEA
Indianapolis
Sun 12/6
6:43 am-11:02 am
1 stop7h 19m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$164
IndianapolisSeattle
IND Indianapolis - SEA Seattle/Tacoma Intl
INDSEA
Indianapolis
Tue 11/10
4:21 pm-11:57 pm
1 stop10h 36m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$164
IndianapolisSeattle
IND Indianapolis - SEA Seattle/Tacoma Intl
INDSEA
Indianapolis
Thu 11/19
5:11 pm-11:59 pm
1 stop9h 48m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$164
Quickest round-trip
IndianapolisSeattle
IND Indianapolis - SEA Seattle/Tacoma Intl
INDSEA
Indianapolis
Wed 11/4
6:41 am-10:40 am
1 stop6h 59m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$164
IndianapolisSeattle
IND Indianapolis - SEA Seattle/Tacoma Intl
INDSEA
Indianapolis
Sun 11/8
7:20 am-1:34 pm
1 stop9h 14m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$164
IndianapolisSeattle
IND Indianapolis - SEA Seattle/Tacoma Intl
INDSEA
Indianapolis
Fri 10/2
6:23 pm-11:26 pm
1 stop8h 03m
Seattle/Tacoma Intl
Sun 10/4
11:13 pm-8:16 am
1 stop6h 03m
$327
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Indianapolis to Seattle
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Indianapolis to Seattle in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Indianapolis-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Indianapolis-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Indianapolis-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Indianapolis-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Indianapolis-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
IND-SEA
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
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How far ahead should I book a flight from Indianapolis to Seattle?
Booking 55 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 $288). Flying from Indianapolis to Seattle in July is currently the most expensive (average of $515). 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 September 10, 2026.
When flying from Indianapolis to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
What’s the top layover airport for flights from Indianapolis to Seattle?
Share of 1-stop round-trip flights from Indianapolis to Seattle chosen by Cheapflights users in the past 12 months, using the same layover each way.
Chicago (ORD) – chosen by Cheapflights users on 67% of 1-stop itineraries from Indianapolis to Seattle on Cheapflights.
What’s the cheapest layover airport for flights from Indianapolis to Seattle?
Average round-trip fare for 1-stop flights from Indianapolis to Seattle, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $302.
What’s the fastest layover option from Indianapolis to Seattle?
Shortest average travel time for 1-stop one-way flights from Indianapolis to Seattle, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 6h 44m.
Which airport typically offers the quickest layover for flights from Indianapolis to Seattle?
Average layover duration for 1-stop one-way flights from Indianapolis to Seattle, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Chicago (ORD) offer the fastest connection on this route, with an average layover time of 1h 13m.
The best insider tips for Indianapolis to Seattle flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Indianapolis to Seattle trip
Our travel experts
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 September 10, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta from Indianapolis to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Boarding
8.1
Crew
8.6
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Entertainment
7.5
Boarding
8.1
Crew
8.6
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Entertainment
7.5
Boarding
8.1
Crew
8.6
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Entertainment
7.5
Boarding
8.1
Crew
8.6
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Entertainment
7.5
Boarding
8.1
Crew
8.6
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Entertainment
7.5
Boarding
8.1
Crew
8.6
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
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.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
Tacoma
Lacey
Leavenworth
Olympia
Tukwila
Edmonds
Snoqualmie
Puyallup
Lynnwood
Centralia
Kent
Tumwater
Ellensburg
Issaquah
Marysville
Ocean Shores
Lakewood
Fife
Browse thousands of different options on Cheapflights for your next trip
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Search flights from Indianapolis to Seattle by cabin class
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Indianapolis and Seattle flights
Browse other Indianapolis and Seattle flight options. Last updated on September 10, 2026.
Other flights from Indianapolis
Browse through other flights departing from Indianapolis. Flights are based on user searches made on Cheapflights and were last updated on September 10, 2026.
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Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 10, 2026.
Top 6 airlines flying from Indianapolis to Seattle
Discover the top 6 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 7,457,451 searches. Data last updated September 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$112 | Average$302 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$119 | Average$249 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$178 | Average$440 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$231 | Average$391 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$237 | Average$448 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$238 | Average$334 | FlexibilityNo cancel fee | On-time69% |