$125+ 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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
IND — SEA
Jul 15 — Jul 221
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 41 days in advance, depart on a Friday or Thursday and return on a Saturday
Cheap flight deals from Indianapolis to Seattle
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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 June 15, 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 June 15, 2026.
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 8/147:00 pm
IND
- SEA
1 stop8h 20m
Southwest
Wed 8/199:25 am
SEA
- IND
2 stops10h 25m
Southwest
Deal found 6/11![Southwest logo]()
$257
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.
Tue 9/15:04 am
IND
- SEA
1 stop7h 25m
American Airlines
Tue 9/811:40 am
SEA
- IND
1 stop9h 36m
American Airlines
Deal found 6/11![American Airlines logo]()
$258
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/65:25 pm
IND
- SEA
1 stop9h 19m
Delta
Fri 8/1411:59 pm
SEA
- IND
1 stop8h 40m
Delta
Deal found 6/11![Delta logo]()
$259
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.
Wed 8/264:25 pm
IND
- SEA
2 stops9h 40m
Southwest
Tue 9/19:25 am
SEA
- IND
2 stops10h 25m
Southwest
Deal found 6/11![Southwest logo]()
$263
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.
Wed 10/77:40 am
IND
- SEA
1 stop14h 20m
Southwest
Mon 10/128:05 am
SEA
- IND
1 stop8h 15m
Southwest
Deal found 6/11![Southwest logo]()
$264
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2010:35 am
IND
- SEA
2 stops13h 40m
Southwest
Thu 8/277:00 am
SEA
- IND
2 stops8h 30m
Southwest
Deal found 6/10![Southwest logo]()
$268
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.
Tue 11/1711:30 am
IND
- SEA
2 stops10h 05m
Southwest
Tue 11/245:30 am
SEA
- IND
1 stop10h 00m
Southwest
Deal found 6/11![Southwest logo]()
$271
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:00 am
IND
- SEA
1 stop8h 10m
American Airlines
Sat 8/225:10 am
SEA
- IND
1 stop9h 48m
American Airlines
Deal found 6/10![American Airlines logo]()
$272
This CheapOair deal was found by Cheapflights users on 6/12. 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.
Sun 8/308:46 pm
IND
- SEA
1 stop16h 02m
Frontier
Tue 9/87:41 pm
SEA
- IND
1 stop20h 40m
Frontier
Deal found 6/12![Frontier logo]()
$275
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:00 pm
IND
- SEA
1 stop9h 35m
Southwest
Fri 8/1412:55 pm
SEA
- IND
2 stops8h 40m
Southwest
Deal found 6/10![Southwest logo]()
$276
This American Airlines deal was found by Cheapflights users on 6/13. 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.
Wed 8/125:04 am
IND
- SEA
1 stop7h 25m
American Airlines
Wed 8/1911:48 am
SEA
- IND
1 stop8h 55m
American Airlines
Deal found 6/13![American Airlines logo]()
$277
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 June 15, 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 June 15, 2026.
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:10 pm
IND
- SEA
1 stop8h 30m
Southwest
Thu 8/2712:55 pm
SEA
- IND
2 stops8h 40m
Southwest
Deal found 6/10![Southwest logo]()
$257
This Delta deal was found by Cheapflights users on 6/13. 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 8/65:25 pm
IND
- SEA
1 stop9h 19m
Delta
Fri 8/1411:59 pm
SEA
- IND
1 stop8h 40m
Delta
Deal found 6/13![Delta logo]()
$284
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/179:20 am
IND
- SEA
2 stops13h 50m
United Airlines
Tue 11/2410:40 pm
SEA
- IND
1 stop9h 19m
United Airlines
Deal found 6/11![United Airlines logo]()
$344
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.
Wed 9/94:25 pm
IND
- SEA
2 stops9h 40m
Southwest
Sun 9/139:25 pm
SEA
- IND
1 stop14h 10m
Southwest
Deal found 6/11![Southwest logo]()
$276
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.
Sun 8/307:35 pm
IND
- SEA
1 stop7h 19m
Delta
Tue 9/811:15 am
SEA
- IND
1 stop7h 40m
Delta
Deal found 6/10![Delta logo]()
$284
This Southwest deal was found by Cheapflights users on 6/14. 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.
Tue 8/251:55 pm
IND
- SEA
1 stop7h 15m
Southwest
Thu 8/279:10 am
SEA
- IND
2 stops10h 50m
Southwest
Deal found 6/14![Southwest logo]()
$289
This United Airlines deal was found by Cheapflights users on 6/14. 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 8/213:47 pm
IND
- SEA
2 stops10h 39m
United Airlines
Mon 8/247:35 pm
SEA
- IND
2 stops14h 12m
United Airlines
Deal found 6/14![United Airlines logo]()
$359
This Southwest deal was found by Cheapflights users on 6/14. 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 9/25:00 pm
IND
- SEA
2 stops9h 05m
Southwest
Tue 9/811:05 pm
SEA
- IND
2 stops11h 05m
Southwest
Deal found 6/14![Southwest logo]()
$316
This Southwest deal was found by Cheapflights users on 6/13. 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 7/308:00 pm
IND
- SEA
1 stop7h 55m
Southwest
Sat 8/17:35 pm
SEA
- IND
1 stop11h 50m
Southwest
Deal found 6/13![Southwest logo]()
$329
This Southwest deal was found by Cheapflights users on 6/14. 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 8/287:00 pm
IND
- SEA
1 stop8h 20m
Southwest
Sun 9/65:10 am
SEA
- IND
2 stops10h 20m
Southwest
Deal found 6/14![Southwest logo]()
$359
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:35 am
IND
- SEA
2 stops13h 40m
Southwest
Sun 8/3012:25 pm
SEA
- IND
2 stops10h 15m
Southwest
Deal found 6/10![Southwest logo]()
$368
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/257:55 pm
IND
- SEA
1 stop8h 20m
Southwest
Sun 8/26:15 am
SEA
- IND
2 stops14h 40m
Southwest
Deal found 6/10![Southwest logo]()
$374
Last-minute flights from Indianapolis to SeattleDiscover last-minute flight deals from Indianapolis to Seattle. Data last updated June 15, 2026 and is based on user searches.
Discover last-minute flight deals from Indianapolis to Seattle. Data last updated June 15, 2026 and is based on user searches.
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.
Tue 6/301:46 pm
IND
- SEA
1 stop10h 03m
Delta
Tue 7/711:59 pm
SEA
- IND
1 stop8h 29m
Delta
Deal found 6/10![Delta logo]()
$284
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.
Mon 7/68:00 pm
IND
- SEA
1 stop7h 55m
Southwest
Tue 7/1411:05 pm
SEA
- IND
1 stop10h 05m
Southwest
Deal found 6/11![Southwest logo]()
$278
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/77:45 pm
IND
- SEA
1 stop7h 50m
Southwest
Mon 7/1311:05 pm
SEA
- IND
1 stop10h 05m
Southwest
Deal found 6/10![Southwest logo]()
$309
This American Airlines deal was found by Cheapflights users on 6/14. 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.
Wed 7/87:00 am
IND
- SEA
1 stop9h 48m
American Airlines
Wed 7/1511:56 pm
SEA
- IND
1 stop6h 05m
American Airlines
Deal found 6/14![American Airlines logo]()
$277
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.
Thu 7/99:15 pm
IND
- SEA
1 stop7h 30m
Southwest
Thu 7/167:35 am
SEA
- IND
2 stops15h 10m
Southwest
Deal found 6/11![Southwest logo]()
$295
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.
Mon 7/137:15 pm
IND
- SEA
2 stops9h 30m
Southwest
Wed 8/129:25 am
SEA
- IND
2 stops10h 25m
Southwest
Deal found 6/11![Southwest logo]()
$276
This Southwest deal was found by Cheapflights users on 6/13. 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.
Mon 7/138:00 pm
IND
- SEA
1 stop7h 55m
Southwest
Fri 7/247:30 pm
SEA
- IND
1 stop11h 30m
Southwest
Deal found 6/13![Southwest logo]()
$289
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.
Mon 7/137:15 pm
IND
- SEA
2 stops9h 30m
Southwest
Thu 8/1312:55 pm
SEA
- IND
2 stops8h 40m
Southwest
Deal found 6/11![Southwest logo]()
$296
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/137:59 pm
IND
- SEA
1 stop8h 16m
United Airlines
Thu 8/1311:00 pm
SEA
- IND
1 stop8h 02m
United Airlines
Deal found 6/11![United Airlines logo]()
$303
This Super.com deal was found by Cheapflights users on 6/12. 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.
Sun 7/199:03 pm
IND
- SEA
1 stop15h 14m
Frontier
Thu 7/2312:35 pm
SEA
- IND
1 stop28h 33m
Frontier
Deal found 6/12![Frontier logo]()
$288
This Southwest deal was found by Cheapflights users on 6/12. 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 7/248:00 pm
IND
- SEA
1 stop7h 55m
Southwest
Wed 8/56:25 am
SEA
- IND
1 stop11h 30m
Southwest
Deal found 6/12![Southwest logo]()
$311
This Southwest deal was found by Cheapflights users on 6/14. 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 7/308:00 pm
IND
- SEA
1 stop7h 55m
Southwest
Tue 8/47:40 am
SEA
- IND
2 stops10h 15m
Southwest
Deal found 6/14![Southwest logo]()
$299
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 June 15, 2026.
Search for one-way flight options from Indianapolis to Seattle. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
This Delta deal was found by Cheapflights users on 6/15. 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 7/105:25 pm
IND
- SEA
1 stop9h 38m
Delta
Deal found 6/15![Delta logo]()
$125
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.
Wed 7/83:30 pm
IND
- SEA
1 stop12h 05m
Southwest
Deal found 6/11![Southwest logo]()
$130
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/241:30 pm
IND
- SEA
2 stops10h 45m
Southwest
Deal found 6/10![Southwest logo]()
$131
This American Airlines deal was found by Cheapflights users on 6/13. 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.
Wed 7/155:36 am
IND
- SEA
1 stop6h 51m
American Airlines
Deal found 6/13![American Airlines logo]()
$139
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.
Thu 10/226:55 am
IND
- SEA
2 stops9h 40m
Southwest
Deal found 6/11![Southwest logo]()
$146
This Southwest deal was found by Cheapflights users on 6/15. 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 8/67:00 pm
IND
- SEA
1 stop8h 20m
Southwest
Deal found 6/15![Southwest logo]()
$147
This Southwest deal was found by Cheapflights users on 6/14. 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.
Tue 8/114:25 pm
IND
- SEA
2 stops9h 40m
Southwest
Deal found 6/14![Southwest logo]()
$152
This Southwest deal was found by Cheapflights users on 6/14. 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 7/44:15 pm
IND
- SEA
1 stop8h 00m
Southwest
Deal found 6/14![Southwest logo]()
$160
This Frontier deal was found by Cheapflights users on 6/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:16 pm
IND
- SEA
1 stop7h 11m
Frontier
Deal found 6/14![Frontier logo]()
$169
This American Airlines deal was found by Cheapflights users on 6/14. 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 9/35:04 am
IND
- SEA
1 stop7h 25m
American Airlines
Deal found 6/14![American Airlines logo]()
$170
This Southwest deal was found by Cheapflights users on 6/14. 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.
Sun 8/232:35 pm
IND
- SEA
2 stops12h 35m
Southwest
Deal found 6/14![Southwest logo]()
$171
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 June 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $257 (Southwest) |
One-way from | $125 (Delta) |
Popular in | July |
Cheapest in | January |
Average price | $411 |
Good round-trip deal | $486 or less |
Good one-way deal | $288 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 2,558,603 searches. Data last updated June 15, 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 - SEA
INDSEA
Indianapolis
Thu 8/20
7:10 pm-12:40 am
1 stop8h 30m
Seattle/Tacoma Intl
Thu 8/27
12:55 pm-12:35 am
2 stops8h 40m
$257
IndianapolisSeattle
IND - SEA
INDSEA
Indianapolis
Wed 9/9
4:25 pm-11:05 pm
2 stops9h 40m
Seattle/Tacoma Intl
Sun 9/13
9:25 pm-2:35 pm
1 stop14h 10m
$276
IndianapolisSeattle
IND - SEA
INDSEA
Indianapolis
Thu 8/6
5:25 pm-11:44 pm
1 stop9h 19m
Seattle/Tacoma Intl
Fri 8/14
11:59 pm-11:39 am
1 stop8h 40m
$284
Quickest round-trip
IndianapolisSeattle
IND - SEA
INDSEA
Indianapolis
Sun 8/30
7:35 pm-11:54 pm
1 stop7h 19m
Seattle/Tacoma Intl
Tue 9/8
11:15 am-9:55 pm
1 stop7h 40m
$284
IndianapolisSeattle
IND - SEA
INDSEA
Indianapolis
Tue 8/25
1:55 pm-6:10 pm
1 stop7h 15m
Seattle/Tacoma Intl
Thu 8/27
9:10 am-11:00 pm
2 stops10h 50m
$289
IndianapolisSeattle
IND - SEA
INDSEA
Indianapolis
Wed 9/2
5:00 pm-11:05 pm
2 stops9h 05m
Seattle/Tacoma Intl
Tue 9/8
11:05 pm-1:10 pm
2 stops11h 05m
$316
IndianapolisSeattle
IND - SEA
INDSEA
Indianapolis
Thu 7/30
8:00 pm-12:55 am
1 stop7h 55m
Seattle/Tacoma Intl
Sat 8/1
7:35 pm-10:25 am
1 stop11h 50m
$329
IndianapolisSeattle
IND - SEA
INDSEA
Indianapolis
Tue 11/17
9:20 am-8:10 pm
2 stops13h 50m
Seattle/Tacoma Intl
Tue 11/24
10:40 pm-10:59 am
1 stop9h 19m
$344
IndianapolisSeattle
IND - SEA
INDSEA
Indianapolis
Fri 8/21
3:47 pm-11:26 pm
2 stops10h 39m
Seattle/Tacoma Intl
Mon 8/24
7:35 pm-12:47 pm
2 stops14h 12m
$359
IndianapolisSeattle
IND - SEA
INDSEA
Indianapolis
Fri 8/28
7:00 pm-12:20 am
1 stop8h 20m
Seattle/Tacoma Intl
Sun 9/6
5:10 am-6:30 pm
2 stops10h 20m
$359
Showing 1-10 of 23 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 June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- 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
Prices
Airlines
How far ahead should I book a flight from Indianapolis to Seattle?
Booking 40 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 $287). Flying from Indianapolis to Seattle in July is currently the most expensive (average of $479). 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 15, 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.
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 June 15, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Southwest, 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
7.0
Food
7.0
Crew
8.5
Comfort
7.8
Boarding
8.1
Overall
7.9
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Food
7.0
Crew
8.5
Comfort
7.8
Boarding
8.1
Overall
7.9
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Food
7.0
Crew
8.5
Comfort
7.8
Boarding
8.1
Overall
7.9
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Food
7.0
Crew
8.5
Comfort
7.8
Boarding
8.1
Overall
7.9
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Food
7.0
Crew
8.5
Comfort
7.8
Boarding
8.1
Overall
7.9
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Food
7.0
Crew
8.5
Comfort
7.8
Boarding
8.1
Overall
7.9
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
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
Tacoma
Lacey
Ocean Shores
Leavenworth
Olympia
Edmonds
Snoqualmie
Tumwater
Tukwila
Puyallup
Kent
Lynnwood
Renton
Ellensburg
Fife
Lakewood
Issaquah
Marysville
Shoreline
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Indianapolis and Seattle flights
Browse other Indianapolis and Seattle flight options. Last updated on June 15, 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 June 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 June 15, 2026.
Top 7 airlines flying from Indianapolis to Seattle
Discover the top 7 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 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$100 | Average$238 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$119 | Average$250 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$158 | Average$367 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$159 | Average$395 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$188 | Average$343 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$237 | Average$415 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$237 | Average$333 | FlexibilityNo cancel fee | On-time69% |