$103 Cheap United flights Seattle (SEA) to Raleigh (RDU)

View $103 flight on Sat, Sep 6, 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

$103 Cheap United flights Seattle (SEA) to Raleigh (RDU)

Prices were available within the past 7 days and start at $103 for one-way flights and $212 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Aug 26 - Thu, Sep 4
SEA
Seattle
RDU
Raleigh
$212 Roundtrip, found 3 hours ago
$212
Roundtrip
found 3 hours ago
Select United flight, departing Tue, Aug 26 from Seattle to Raleigh, returning Thu, Sep 4, priced at $212 found 3 hours ago
United
Wed, Sep 24 - Thu, Oct 2
SEA
Seattle
RDU
Raleigh
$227 Roundtrip, found 5 hours ago
$227
Roundtrip
found 5 hours ago
Select United flight, departing Wed, Sep 24 from Seattle to Raleigh, returning Thu, Oct 2, priced at $227 found 5 hours ago
United
Sat, Sep 20 - Tue, Sep 30
SEA
Seattle
RDU
Raleigh
$231 Roundtrip, found 1 hour ago
$231
Roundtrip
found 1 hour ago
Select United flight, departing Sat, Sep 20 from Seattle to Raleigh, returning Tue, Sep 30, priced at $231 found 1 hour ago
United
Wed, Sep 3 - Sat, Sep 13
SEA
Seattle
RDU
Raleigh
$233 Roundtrip, found 1 hour ago
$233
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Sep 3 from Seattle to Raleigh, returning Sat, Sep 13, priced at $233 found 1 hour ago
United
Wed, Sep 3 - Sat, Sep 13
SEA
Seattle
RDU
Raleigh
$237 Roundtrip, found 1 hour ago
$237
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Sep 3 from Seattle to Raleigh, returning Sat, Sep 13, priced at $237 found 1 hour ago
United
Wed, Aug 6 - Sat, Aug 16
SEA
Seattle
RDU
Raleigh
$240 Roundtrip, found 1 hour ago
$240
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Aug 6 from Seattle to Raleigh, returning Sat, Aug 16, priced at $240 found 1 hour ago
Flights from Seattle (SEA) to Raleigh (RDU)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Raleigh - Durham Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, Sun Country Airlines, United
Popular airline
Alaska Airlines
Distance
2348 mi
Average flight time
9 hours 16 mins

Frequently asked questions

How much is a United Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Raleigh - Durham Intl. Airport (RDU)?
Finding cheap one-way United Airlines flights from SEA to RDU from $103 on Expedia couldn't be easier --- just filter by "Price (lowest to highest)." Alternatively, check out our budget-friendly round-trip fares from $212 for your next exciting vacation.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SEA to RDU with United Airlines?
United Airlines flights to Raleigh are generally cheaper in the quieter months of January and December. Whether you're searching for a one-way or round-trip ticket, you could find a better deal then.
What is the cheapest time to book flights from Seattle - Tacoma Intl. Airport (SEA) to Raleigh - Durham Intl. Airport (RDU) with United Airlines?
Look for cheap United Airlines flights from Seattle - Tacoma Intl. Airport (SEA) to Raleigh - Durham Intl. Airport (RDU) one to three months ahead of your day of departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare class and journey, the ideal day to book a domestic flight is generally Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Seattle - Tacoma Intl. Airport (SEA) to Raleigh - Durham Intl. Airport (RDU)?
Simply enter your dates, hit search and select "Nonstop" on Expedia to browse any direct flights from SEA to RDU with United Airlines or other airlines.
What is the earliest United Airlines flight from SEA to RDU?
Filter your results by "Early Morning" and "Morning" to browse the earliest flights from SEA to RDU. Setting off early means you're less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Raleigh?
United Airlines flights from Seattle - Tacoma Intl. Airport (SEA) to Raleigh come in to Raleigh - Durham Intl. Airport (RDU). This is the main entry point to this city.
Why fly with United Airlines from SEA to RDU?
A rewarding loyalty program and the ability to rack up points through United Mileage Plus are the start of the reasons to travel from SEA to RDU with United Airlines. Plus, when you sign up to Expedia's free One Key™ program, you can receive OneKeyCash™* on top of United Airlines's loyalty program earnings. You can put it toward your future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my United Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Raleigh - Durham Intl. Airport (RDU)?
Changes are usually free within 24 hours of making a booking, but your airline may add a charge after that. For further information about modifying your reservation, check out your "Trips," select your flight and click on "Manage Booking." If you'd like the freedom to update your itinerary without extra charges, apply the "No cancel fee" or "Changes included" filter when planning your next getaway.

Explore a world of travel with Expedia

*Available to One Key members.