£143 Find Cheap Flights from Miami to Seattle – Compare and Save

Among airlines operating Miami to Seattle flights:

• American Airlines: offers extra legroom; offers free seat selection
• Delta: offers extra legroom; offers free seat selection
• Alaska Airlines: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

3 airlines operate flights between Miami and Seattle. The airlines offering direct flights on this route include:

• Alaska Airlines
• Delta
• American Airlines

Flights from Miami to Seattle usually depart from Miami (MIA) and arrive at Seattle/Tacoma Intl (SEA).

Here are some options for this route, based on selected ticket types and cabin classes:

• American Airlines: a cabin bag and a checked bag in Economy class
• Delta: a cabin bag and a checked bag in Economy class
• Alaska Airlines: a cabin bag and a checked bag in Economy class

Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

Only Economy class is available on flights from Miami to Seattle.

On this route, stopover flights are cheaper than direct options on average. Stopover fares average £190 return via San Francisco (SFO), compared with £315 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £26–£74 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

The Airbus A321neo family is used most often on this route, operated mainly by Delta and American Airlines. Other aircraft seen on the route include Airbus A321-100/200 variants.

One-stop flights from Miami to Seattle most commonly connect through:

• Denver Intl (DEN) – 60% of one-stop connections
• Las Vegas Harry Reid Intl (LAS) – 18% of one-stop connections
• Dallas/Fort Worth (DFW) – 6% of one-stop connections
• Chicago Midway (MDW) – 4% of one-stop connections

Denver Intl (DEN) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 18% on the Miami to Seattle route. Wednesday is the cheapest departure day at £297 return on average, while Sunday is the most expensive at £361, a difference of £64. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Miami to Seattle route, 20% of flights were delayed in the past 3 months, with delays averaging 2 hours 47 minutes.

Evening is the busiest departure period on Miami to Seattle flights, with 100% leaving in that window. Morning departures account for 0%, Afternoon flights for 0%, and Night flights for 0%.

Some of the most popular sights in Seattle are Pier 66, The Westin Seattle, and Seattle Center. These are among the most viewed places in Seattle on KAYAK.

These are the earliest and latest flight times available from Miami to Seattle:

• Earliest: departs at 07:30 and lands at 14:14
• Latest: departs at 20:45 and lands at 03:29.

The flight takes about 6h 44m.

Last-minute fares on this route (booked within 2 weeks of departure) run 49% above the route average of £312. Book 4 weeks before departure for the lowest fares.

A direct flight from Miami to Seattle takes 6h 44m, covering 2,719 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £248 to £1,658. That means the highest observed fare was about 7x higher than the lowest one.

One-way fares from Miami to Seattle are currently lower than usual. Average one-way flight prices are about £150, which is 30% below the typical average for this route.

Alaska Airlines is slightly above the route average for timely arrivals, while American Airlines has a lower on-time arrival rate. On-time arrival rates on Miami to Seattle flights are:

• Alaska Airlines: 83% on time
• American Airlines: 82% on time
• Delta: 75% on time

On average, flights on this route are punctual 80% of the time.

Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

Flying via Austin Bergstrom (AUS) gives the shortest average 1-stop total travel time of 7h 44m, compared to 8h 15m via Atlanta Hartsfield-Jackson (ATL) and 8h 20m via Portland (PDX).

Seattle is 3 hours behind Miami (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Seattle/Tacoma Intl Airport (SEA) hosts 5 major car hire companies, with daily rates starting from around £3 for economy cars. Top options include:
• Fox
• Europcar
• Thrifty
• Budget
• Dollar

Return flights from Miami to Seattle range from £252 to £404, with an average of £312 over the past 12 months. Anything below £252 counts as a good deal.

Four airlines offer in-flight Wi-Fi on Miami to Seattle flights:

• • American Airlines
• • Delta
• • Alaska Airlines
• • JetBlue