Delta offers free Wi-Fi for SkyMiles members on domestic flights, enhancing in-flight connectivity.
Delta's Sky Priority offers faster check-in for premium cabin passengers and elite status holders.
Planning a trip from Boston to Seattle? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.
When planning a trip from Boston to Seattle, there are several strategies to save money on your flight. Generally, the cheapest day of the week to fly is Friday, while the cheapest month is January.
Advance Booking: Book your flight at least 7 days in advance to get the best price.
Cheapest Airline: Spirit Airlines generally offers the cheapest flights for this route.
Direct Flight: Flying direct is typically more expensive, consider flights with layovers to save money.
Flight Route: The route from Boston Logan International to Seattle/Tacoma International is usually the cheapest.
This feature is powered by ChatGPT: an OpenAI-developed artificial intelligence model trained with KAYAK proprietary data and third-party data not verified by KAYAK.
Low season | January |
---|---|
High season | August |
Cheapest flight | $106 |
Direct departures
Boston Logan Intl to Seattle/Tacoma Intl
Monday
Aer Lingus, Air France, Air Tahiti Nui, +16 more
Aer Lingus, Air France, +17 more
15
16
Tuesday
Aer Lingus, Air France, Air Tahiti Nui, +13 more
Aer Lingus, Air France, +14 more
12
13
Wednesday
Aer Lingus, Air France, Air Tahiti Nui, +15 more
Aer Lingus, Air France, +16 more
14
15
Thursday
Aer Lingus, Air France, Air Tahiti Nui, +16 more
Aer Lingus, Air France, +17 more
15
16
Friday
Aer Lingus, Air France, Air Tahiti Nui, +14 more
Aer Lingus, Air France, +15 more
13
14
Saturday
Aer Lingus, Air France, Air Tahiti Nui, +14 more
Aer Lingus, Air France, +15 more
13
14
Sunday
Aer Lingus, Air France, Air Tahiti Nui, +16 more
Aer Lingus, Air France, +17 more
15
16
Direct returns
Seattle/Tacoma Intl to Boston Logan Intl
Monday
Air France, Air Tahiti Nui, Alaska Airlines, +12 more
Air France, Air Tahiti Nui, +13 more
11
12
Tuesday
Air France, Air Tahiti Nui, Alaska Airlines, +13 more
Air France, Air Tahiti Nui, +14 more
12
13
Wednesday
Aer Lingus, Air France, Air Tahiti Nui, +13 more
Aer Lingus, Air France, +14 more
12
13
Thursday
Air France, Air Tahiti Nui, Alaska Airlines, +13 more
Air France, Air Tahiti Nui, +14 more
12
13
Friday
Air France, Air Tahiti Nui, Alaska Airlines, +13 more
Air France, Air Tahiti Nui, +14 more
12
13
Saturday
Aer Lingus, Air France, Air Tahiti Nui, +15 more
Aer Lingus, Air France, +16 more
14
15
Sunday
Air France, Air Tahiti Nui, Alaska Airlines, +13 more
Air France, Air Tahiti Nui, +14 more
12
13
Cancelled my flights with only 6 hours notice, then offered alternate flights that arrived 1:30 AM next day.
Cancelled my flights with only 6 hours notice, then offered alternate flights that arrived 1:30 AM next day.
Really bad experience. Bad customer service from the check in process through the entire flight.
We were delayed for hours and this was very difficult, which is why the experience was less pleasant
Flight was delayed 5 hours for no reason. Every single time I fly Alaska, there is a problem. This will be the last time
Flight was on time. Staff was polite and efficient. The snacks were good - only an hour and a half flight. No entertainment but didn't expect that. We brought our own things to do.
Flight was great. Crew was excellent! Would fly with them anytime.
We usually enjoy flying Alaska Airlines. However this time we had multiple negative experiences. We were surprised that they rejected our bags because of a new “50 minute cutoff” but they did not tell us about it beforehand and also did not tell us that it was new. They also lost two of our car seats. The one car seat that was returned to us was half out of its bag and half of it was wet. It was not raining so they must have thrown it in a puddle?! I saw at least 4 other car seats on the carousel in the same condition. We purchased two travel car seats for this trip that were pretty expensive and they lost them. We have yet to receive any word or compensation from our “claim.”
The flight was canceled at the last minute and we got very upset as we had plans in which our schedule that affects a family reunion was in jeopardy.
Paying for first class and then they want $8:00 for wifi.
10 hour delay. Fuel spill. Crew had to drive to Indianapolis to a get a plane. The longest day of travel ever. Poor service.Little to no communication.
this crew didn't care much. bumping carts into seats more times than i care to remember
Everything was fine except the entertainment was not working for half of the flight.
There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.
Boarding was organised and relaxed. Crew were fantastic! Seats were lacking padding causing butt pain and stiffness.
5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.
Food from the flight from Atlanta to Santiago was very poor..
The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.
Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!
Seats are much much more comfortable than United, which is what I usually fly
Flight left early and arrived early. the whole trip was excellent.
Everything was good for the price I paid. Crew was very nice.
The worst flight experience I've ever had. Our flight was delayed 14 whole hours because the flight crew never showed up. We had to wait in a two hour line to get our new boarding passes, we were told we had no other option but to fly at 10pm (we didn't depart until 11:45pm). Everyone had to contact their hotels and car rental places, workplaces, etc. since we lost an entire day's worth of travel. The crew showed up at 10:15, which was past the time we were supposed to board. They were laughing and being completely smug when they boarded, and they took another hour to board us onto our flight. The flight crew never came to check in on us, we were quickly given one drink and sandwich and they turned off the lights and were negligent the rest of the trip. My mom asked three attendants for a seat belt extender, they never brought one. I was dehydrated and never received another drink. They were very rude and unfriendly, we had been up since 4am the morning of our flight and didn't land in our destination until 2am the next day (5am local time). This was unacceptable service and treatment, these flights are not cheap and we were inconvenienced out of an entire day of travel. This was 100% avoidable and was the fault of Hawaiian Airlines, and their crews inability to show up to work on time.
Loved the leg room, usb charging, outlet, food, staff. The seats were very uncomfortable for some reason and made my buttocks ache and would have liked to be seated together from the time of purchasing tickets without having to pay extra.
My confirmation number did not work to check in the day before, so I had to go to the very busy line (no kiosks at the airport) and almost missed my flight. Also, no one told me that I had to actually check in with Alaska
You did not have any vegetarians options for the free meal! I do not eat any meat of any kind! I asked the flight attendant and was met with kind of a rude statement like vegetarian? No we don’t have that kind of thing! Did not make me happy but made me feel like why would I want a vegetarian meal! Otherwise a good experience!
I was put in seat 6B with no warning. Had no seat in front of me just sticks out in the aisle so I had to hold what I could and put the rest in a bin way further down.
I was traveling with my two young children and brooked this flight as it was the best option. There were no screens for movies etc. which normally would be fine, however, when you list free in flight entertainment that should be mentioned. We don't rely on them but count on it as a worst case scenario backup for the kids to keep the peace if needed. The main issue though was the food selection. I have dietary restrictions so I was excited to preorder meals. Nothing that was offered on board or for preorder was ok for me to eat, not even the snack boxes. It was very frustrating for a 5+ hour flight. Otherwise the flight was good and went smoothly.
Usually we have a pleasant trip on HA. Not this time! All stewards were unpleasant, rude, rushed, condescending. First step onto the plane, WE greeted the crew with an “Hello!”. They greeted us with a terse smile then ignored us. Not a good start. Even over the PA announcements, they were rushed and unpleasant. One Stewart even berated a passenger in front of us when all they asked is if the purchase cart had vodka to purchase. The steward said “LIKE WE SAID OVER THE PA, THIS ONLY HAS FOOD OR BEVERAGE!” Vodka is a beverage! It was a legitimate question. Not sure why she treated the passenger this way. Taking trash was even unpleasant, No “Thank you” or at least a smile. I work in CS. I know good CS can make or break your trip. There was absolutely no “aloha” on this trip. All clearly did not want to be on this plane and felt strongly that they did not want to provide a premium service to their clients. This might be our last HA and cancellation of my HA-MC if we are treated the same way going home. We are typically treated with kindness and warmth in the past with HA. This trip was unacceptable.
Plenty of overhead compartment room. The seat choice option is horrendous as best.
Really disappointed with in flight entertainment, 6 hr flight with no built in screens
My JetBlue experience was nice. The flights ran on time, the aircraft was clean and comfortable, and the flight attendants were attentive. My only issue, which is isolated to the low-cost (budget) option at JetBlue, is that the check in process makes the user feel that they have to buy their seats. The seats offered for purchase are upgrades from the budget seats you get (which are essentially the last seats remaining). The interface should not make it feel like you must purchase a seat.
The plane was late to leave.. Internet was lousy. TV was not working. when we arrived, We stayed on the plane for a long time before we got to the gate. It took us a long time to retrieve our luggage because they didn’t know what carousel to send them to. It was a bad experience.
I especially liked the lead crew officer. His boarding and safety announcements were made with a bit of novelty and humor. The flight also left the gate 10 minutes early and we landed about 20 minutes early… It was a delightful flight…
There were mutliple delays. There was inconsistent, delayed, and poor communication regarding the delays.
Spend hours delayed with no food, water anything sitting on the aieplane with no ability to eat or use the restroom. My entire experience was the absolute worst. I will never fly jet Blue again.
It would have been nice if they had offered more than one set of snacks
Seats were not too comfortable; it was impossible to locate the underseat power outlet.
You get what you pay for with JetBlue. Every little thing costs more, you are nickel and dimed until the end. Entertainment doesn’t function. Flight attendants do the bare minimum.
The check in and boarding process was a bit of a cluster. Two people at the counter to check in, three random lines that nobody knew which was for what, and people kept getting shuffled from one line to another for no apparent reason because then they’d get shuffled back and end up getting out further back in the line than they were originally. I only had to hand my already checked bag over and it took 45 minutes. I was never assigned a seat so when I tried to board I was pulled out of line again while someone had to try to manually assign me a seat. During the flight I got up to go to the bathroom, and there was an attendant in the aisle offering pillows etc and it was a 30 min wait unbuckled standing by the bathrooms because she said I couldn’t go past her. First and last time flying jet blue to be honest.
Communication since no reason or explanation was given for 3 hrs delay
The flight got delayed 2.5 hrs due to a maintenance issue that cause a domino effect. American should have spare planes for when something like this happens.
Delayed flight, so I switched fights to SFO to Phoenix , Phoenix to DSM. Excellent service through American Airlines
I didn't like that my paid for seat was changed 2 hours before my flight.
The flight had a delay that made me being in a real rush to take the second flight. The delay was almost for 2 hours. They moved us from gate to gate in 4 times. Once I arrived to Philadelphia, I got to run thorough all the airport, as the train was already closed by that time. So I got sick with asthma for all the running I had to do. And I was the last one to board, when it was almost closed. So irresponsable with the people
Flight was delayed and after being in the airport for like seven hours, it was canceled.
Overall fine, but the delay was annoying and the reasons for the delay were not communicated. The crew on board were phenomenal!
Flight delays numerous times. Everytime we would get close to boarding it would be delayed again. Strung along the entire time.
After a two hour delay, my flight was CANCELLED! No pilot available. Such BS.
Overall very good, only complaint I have is the crew from CLT to SAT could have collected trash sooner.
The AA app really sucks ... Every flight & connecting flights were delayed over 30 mins. One connecting flight on American Eagle said it was delayed in its arrival ... when it was actually parked across from the gate for over 1 hr before they pulled it to the gate. Seats in the economy/ main cabin are packed together like sardines ... no leg room.
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