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Cheap Flights from Seattle to Washington (SEA - IAD)

DepartReturn
1 adult
Note: some airlines charge for infants in laps.
The price shown for each flight will be the average for all passengers including any infants.
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Best fares from SEA to IAD (Found by others)

Sun Mon Tue Wed Thu Fri Sat
  1 $675 2 $536 3 $538 4 $570 5 $469 6 $469
7 $549 8 $469 9 $400 10 $436 11 $400 12 $472 13 $469
14 $472 15 $464 16 $379 17 $392 18 $519 19 $495 20 $462
21 $472 22 $378 23 $350 24 $348 25 $300 26 $300 27 $450
28 $502 29 $350 30 $350        
KAYAK searches hundreds of sites to find the best rate for your next flight from Seattle to Washington. Get the best flight deal for your Washington trip!
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Direct flights SEA to IAD on United
Flight # Depart SEA Arrive IAD Sun Mon Tue Wed Thu Fri Sat Valid Between
1627 7:45 am 3:45 pm Oct 7 - Oct 7
511 7:45 am 3:40 pm Oct 1 - Oct 10
511 7:45 am 3:40 pm Oct 4 - Oct 11
511 7:45 am 3:45 pm Oct 5 - Oct 19
419 7:57 am 3:52 pm Sep 24 - Sep 24
511 7:57 am 3:52 pm Sep 20 - Sep 27
360 8:00 am 3:53 pm Sep 5 - Sep 19
1627 8:03 am 4:03 pm Sep 23 - Sep 23
1627 8:03 am 4:03 pm Sep 30 - Sep 30
511 8:03 am 3:58 pm Sep 26 - Sep 26
511 8:03 am 3:58 pm Sep 22 - Sep 29
511 8:03 am 4:03 pm Sep 21 - Sep 28
1196 8:04 am 4:02 pm Sep 7 - Sep 7
1676 8:04 am 4:02 pm Sep 14 - Sep 14
1627 8:10 am 4:08 pm Sep 4 - Sep 18
1704 8:10 am 4:08 pm Sep 9 - Sep 16
360 8:10 am 4:03 pm Sep 6 - Sep 13
511 8:10 am 4:03 pm Sep 10 - Sep 17
260 1:03 pm 9:03 pm Sep 25 - Sep 25
360 1:03 pm 9:03 pm Sep 22 - Sep 29
360 1:03 pm 9:03 pm Sep 23 - Sep 30
419 1:03 pm 9:03 pm Sep 26 - Sep 26
1247 1:04 pm 9:06 pm Sep 21 - Sep 21
1247 1:04 pm 9:06 pm Sep 28 - Sep 28
262 1:05 pm 9:05 pm Sep 14 - Sep 14
262 1:05 pm 9:05 pm Sep 7 - Sep 7
1054 1:07 pm 9:09 pm Aug 30 - Sep 13
1247 1:07 pm 9:09 pm Oct 5 - Oct 5
234 1:07 pm 9:07 pm Sep 20 - Oct 11
360 1:07 pm 9:07 pm Oct 7 - Oct 21
360 1:07 pm 9:07 pm Oct 6 - Oct 6
419 1:07 pm 9:07 pm Oct 1 - Oct 8
419 1:07 pm 9:07 pm Oct 2 - Oct 17
1627 1:10 pm 9:12 pm Sep 19 - Sep 19
1709 1:10 pm 9:12 pm Sep 9 - Sep 16
260 1:10 pm 9:10 pm Sep 11 - Sep 18
260 1:10 pm 9:10 pm Sep 1 - Sep 8
260 1:10 pm 9:07 pm Sep 17 - Sep 17
260 1:10 pm 9:10 pm Sep 10 - Sep 15
798 1:10 pm 9:10 pm Sep 24 - Sep 24
1271 10:17 pm 6:10 am Sep 17 - Sep 17
1275 10:17 pm 6:10 am Sep 13 - Sep 13
1275 10:17 pm 6:10 am Sep 6 - Sep 6
1403 10:17 pm 6:10 am Sep 16 - Sep 16
1403 10:17 pm 6:10 am Sep 9 - Sep 9
1666 10:17 pm 6:10 am Sep 12 - Sep 12
1666 10:17 pm 6:10 am Sep 11 - Sep 15
1666 10:17 pm 6:10 am Sep 18 - Sep 18
1666 10:17 pm 6:10 am Sep 8 - Sep 8
1666 10:17 pm 6:10 am Sep 19 - Sep 19
1709 10:17 pm 6:10 am Sep 7 - Sep 7
1709 10:17 pm 6:10 am Sep 14 - Sep 14
1755 10:17 pm 6:10 am Sep 10 - Sep 10
1185 11:16 pm 7:09 am Oct 5 - Oct 5
1246 11:16 pm 7:09 am Oct 7 - Oct 7
1246 11:16 pm 7:09 am Oct 1 - Oct 20
1575 11:16 pm 7:09 am Oct 2 - Oct 2
1575 11:16 pm 7:09 am Oct 3 - Oct 3
1246 11:20 pm 7:13 am Sep 26 - Sep 26
1246 11:20 pm 7:13 am Sep 23 - Sep 30
1246 11:20 pm 7:13 am Sep 22 - Sep 29
1246 11:20 pm 7:13 am Sep 25 - Sep 25
1627 11:20 pm 7:13 am Sep 24 - Sep 24
1025 11:25 pm 7:18 am Sep 21 - Sep 21
1287 11:25 pm 7:18 am Sep 28 - Sep 28