RDU offers free Wi-Fi throughout the terminals. Connect to the 'RDU Free WiFi' network for seamless browsing before your flight.
Round-trip from | $206 (Priceline) |
---|---|
One-way from | $158 (CheapOair) |
Popular in | June |
Cheapest in | January |
Average price | $412 |
Good round-trip deal | $347 or less |
Good one-way deal | $183 or less |
Fly from
Fly to
Route
Depart
Return
Price
RaleighSeattle
RDU - SEA
RDUSEA
Raleigh-Durham
Fri 9/19
5:23 pm-12:30 am
1 stop10h 07m
Seattle/Tacoma Intl
Sun 9/21
8:35 pm-8:30 pm
2 stops20h 55m
RaleighSeattle
RDU - SEA
RDUSEA
Raleigh-Durham
Mon 9/22
5:23 pm-12:30 am
1 stop10h 07m
Seattle/Tacoma Intl
Thu 9/25
8:31 pm-8:35 pm
2 stops21h 04m
RaleighSeattle
RDU - SEA
RDUSEA
Raleigh-Durham
Fri 10/3
5:23 pm-12:30 am
1 stop10h 07m
Seattle/Tacoma Intl
Sun 10/5
1:22 pm-9:53 am
2 stops17h 31m
RaleighSeattle
RDU - SEA
RDUSEA
Raleigh-Durham
Fri 9/5
6:22 am-5:33 pm
2 stops14h 11m
Seattle/Tacoma Intl
Fri 9/12
6:12 am-4:28 pm
1 stop7h 16m
RaleighSeattle
RDU - SEA
RDUSEA
Raleigh-Durham
Fri 9/26
5:23 pm-12:30 am
1 stop10h 07m
Seattle/Tacoma Intl
Sun 10/5
1:22 pm-9:53 am
2 stops17h 31m
RaleighSeattle
RDU - SEA
RDUSEA
Raleigh-Durham
Thu 9/4
5:23 pm-12:30 am
1 stop10h 07m
Seattle/Tacoma Intl
Thu 9/11
6:12 am-4:38 pm
1 stop7h 26m
RaleighSeattle
RDU - SEA
RDUSEA
Raleigh-Durham
Fri 9/5
5:23 pm-12:30 am
1 stop10h 07m
Seattle/Tacoma Intl
Thu 9/11
6:12 am-4:38 pm
1 stop7h 26m
RaleighSeattle
RDU - SEA
RDUSEA
Raleigh-Durham
Thu 9/4
5:23 pm-12:30 am
1 stop10h 07m
Seattle/Tacoma Intl
Mon 9/8
1:49 pm-8:37 pm
2 stops27h 48m
RaleighSeattle
RDU - SEA
RDUSEA
Raleigh-Durham
Thu 11/6
5:21 pm-12:13 pm
1 stop21h 52m
Seattle/Tacoma Intl
Mon 11/10
11:43 am-4:36 pm
2 stops25h 53m
RaleighSeattle
RDU - SEA
RDUSEA
Raleigh-Durham
Thu 11/6
7:05 pm-6:32 pm
2 stops50h 27m
Seattle/Tacoma Intl
Thu 11/13
12:58 pm-4:36 pm
1 stop24h 38m
Booking 37 days in advance of your planned departure date is, on average, the best time to get cheap flights from Raleigh to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, January is the cheapest month in which you can book a flight from Raleigh to Seattle (average of $238). Flying from Raleigh to Seattle in June is currently the most expensive (average of $389). 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.
When flying from Raleigh 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 19% versus a flight in the afternoon.
Travelers seeking maximum savings on their Raleigh to Seattle flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from RDU to SEA are scheduled on a Friday (8 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 on average).
Denver (DEN) – chosen by Cheapflights users on 80% of 1-stop itineraries from Raleigh to Seattle on Cheapflights.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $283.
Flights via Chicago (MDW) have the shortest average one-way travel time for 1-stop routes: 8h 25m.
Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 2h 11m.
Boarding
Food
Overall
Comfort
Crew
Entertainment
Reviews
Anonymous,Aug 2025
MFR - SEA
Boarding
Food
Overall
Comfort
Crew
Entertainment
Reviews
Anonymous,Aug 2025
MFR - SEA
Boarding
Food
Overall
Comfort
Crew
Entertainment
Reviews
Anonymous,Aug 2025
MFR - SEA
Boarding
Food
Overall
Comfort
Crew
Entertainment
Reviews
Anonymous,Aug 2025
MFR - SEA
Boarding
Food
Overall
Comfort
Crew
Entertainment
Reviews
Anonymous,Aug 2025
MFR - SEA
Boarding
Food
Overall
Comfort
Crew
Entertainment
Reviews
Anonymous,Aug 2025
MFR - SEA
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$128 | Average$259 | FlexibilityNo cancel fee | On-time62% | |
Cheapest$153 | Average$413 | FlexibilityNo cancel fee | On-time85% | |
Cheapest$178 | Average$373 | FlexibilityNo cancel fee | On-time69% | |
Cheapest$237 | Average$415 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$255 | Average$397 | FlexibilityNo cancel fee | On-time63% | |
Cheapest$257 | Average$447 | FlexibilityNo cancel fee | On-time75% | |
Cheapest$276 | Average$355 | FlexibilityNo cancel fee | On-time71% |