# Seattle (SEA) to Boston (BOS), Apr 11, 2027: round trips from $525, one way from $270

Seattle (SEA) to Boston (BOS), Apr 11, 2027: round trips from $525, one way from $270 on Axel, checked Oct 29, 2026. Lowest published fares: $525 round trip, Axel-exclusive, Alaska Airlines, nonstop, Apr 11–12, 2027; $270 one way, Axel-exclusive, Alaska Airlines, nonstop, Apr 11, 2027; 1 adult, economy, checked Oct 29, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

**Prices by return date:** match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time shown.

**Date links** open published trip details for exploration. **Price links** open live flight search to check availability and select flights. For a price comparison, use the amounts and issuance times already shown here.

| Exact travel dates | Airline | Flights | Times, duration, stops | Total price | Price issued (UTC) |
| --- | --- | --- | --- | ---: | --- |
| [2027-04-11 · one way](https://helloaxel.com/en/flights/choose/sea-bos/apr-11/one-way/alaska) | Alaska Airlines | AS460 | 21:20:00→05:40:00 5h 20m nonstop | [Axel-exclusive $270.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-11-2027/trip/one-way/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z |
| [2027-04-11 → 2027-04-12](https://helloaxel.com/en/flights/choose/sea-bos/apr-11/apr-12/alaska) | Alaska Airlines | AS460 / AS215 | 21:20:00→05:40:00 5h 20m nonstop · 09:00:00→12:37:00 6h 37m nonstop | [Axel-exclusive $525.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-11-2027/return/april-12-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z |
| [2027-04-11 → 2027-04-13](https://helloaxel.com/en/flights/choose/sea-bos/apr-11/apr-13/alaska) | Alaska Airlines | AS460 / AS215 | 21:20:00→05:40:00 5h 20m nonstop · 09:00:00→12:37:00 6h 37m nonstop | [Axel-exclusive $525.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-11-2027/return/april-13-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z |
| [2027-04-11 → 2027-04-14](https://helloaxel.com/en/flights/choose/sea-bos/apr-11/apr-14/alaska) | Alaska Airlines | AS460 / AS459 | 21:20:00→05:40:00 5h 20m nonstop · 07:00:00→10:38:00 6h 38m nonstop | [Axel-exclusive $525.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-11-2027/return/april-14-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z |
| [2027-04-11 → 2027-04-15](https://helloaxel.com/en/flights/choose/sea-bos/apr-11/apr-15/alaska) | Alaska Airlines | AS460 / AS215 | 21:20:00→05:40:00 5h 20m nonstop · 09:00:00→12:37:00 6h 37m nonstop | [Axel-exclusive $525.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-11-2027/return/april-15-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z |
| [2027-04-11 → 2027-04-16](https://helloaxel.com/en/flights/choose/sea-bos/apr-11/apr-16/alaska) | Alaska Airlines | AS460 / AS215 | 21:20:00→05:40:00 5h 20m nonstop · 09:00:00→12:37:00 6h 37m nonstop | [Axel-exclusive $590.63](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-11-2027/return/april-16-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z |
| [2027-04-11 → 2027-04-17](https://helloaxel.com/en/flights/choose/sea-bos/apr-11/apr-17/alaska) | Alaska Airlines | AS460 / AS459 | 21:20:00→05:40:00 5h 20m nonstop · 07:00:00→10:38:00 6h 38m nonstop | [Axel-exclusive $590.63](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-11-2027/return/april-17-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z |
| [2027-04-11 → 2027-04-18](https://helloaxel.com/en/flights/choose/sea-bos/apr-11/apr-18/alaska) | Alaska Airlines | AS460 / AS257 | 21:20:00→05:40:00 5h 20m nonstop · 18:19:00→22:00:00 6h 41m nonstop | [Axel-exclusive $590.63](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-11-2027/return/april-18-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z |
| [2027-04-11 → 2027-04-19](https://helloaxel.com/en/flights/choose/sea-bos/apr-11/apr-19/alaska) | Alaska Airlines | AS460 / AS215 | 21:20:00→05:40:00 5h 20m nonstop · 09:00:00→12:37:00 6h 37m nonstop | [Axel-exclusive $590.63](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-11-2027/return/april-19-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z |
| [2027-04-11 → 2027-04-20](https://helloaxel.com/en/flights/choose/sea-bos/apr-11/apr-20/alaska) | Alaska Airlines | AS460 / AS215 | 21:20:00→05:40:00 5h 20m nonstop · 09:00:00→12:37:00 6h 37m nonstop | [Axel-exclusive $590.63](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-11-2027/return/april-20-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z |
| [2027-04-11 → 2027-04-21](https://helloaxel.com/en/flights/choose/sea-bos/apr-11/apr-21/alaska) | Alaska Airlines | AS460 / AS459 | 21:20:00→05:40:00 5h 20m nonstop · 07:00:00→10:38:00 6h 38m nonstop | [Axel-exclusive $525.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-11-2027/return/april-21-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z |
| [2027-04-11 → 2027-04-22](https://helloaxel.com/en/flights/choose/sea-bos/apr-11/apr-22/alaska) | Alaska Airlines | AS460 / AS215 | 21:20:00→05:40:00 5h 20m nonstop · 09:00:00→12:37:00 6h 37m nonstop | [Axel-exclusive $525.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-11-2027/return/april-22-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z |
| [2027-04-11 → 2027-04-23](https://helloaxel.com/en/flights/choose/sea-bos/apr-11/apr-23/alaska) | Alaska Airlines | AS460 / AS215 | 21:20:00→05:40:00 5h 20m nonstop · 09:00:00→12:37:00 6h 37m nonstop | [Axel-exclusive $525.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-11-2027/return/april-23-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z |
| [2027-04-11 → 2027-04-24](https://helloaxel.com/en/flights/choose/sea-bos/apr-11/apr-24/alaska) | Alaska Airlines | AS460 / AS459 | 21:20:00→05:40:00 5h 20m nonstop · 07:00:00→10:38:00 6h 38m nonstop | [Axel-exclusive $525.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-11-2027/return/april-24-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z |
| [2027-04-11 → 2027-04-25](https://helloaxel.com/en/flights/choose/sea-bos/apr-11/apr-25/alaska) | Alaska Airlines | AS460 / AS257 | 21:20:00→05:40:00 5h 20m nonstop · 18:19:00→22:00:00 6h 41m nonstop | [Axel-exclusive $525.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-11-2027/return/april-25-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z |

### Hotels in Boston for these trips

**Hotels:** under a trip, hotels in Boston for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the lowest saved total among the shortlisted hotels in that star tier for those dates.

- Hotels in Boston for these nights (Apr 11–12, 2027 · 1 night · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $153 total](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2027-04-11/2027-04-12/2-adults) · 4★ [Hilton Boston Park Plaza Hotel, $241 total](https://helloaxel.com/en/hotels/boston/hilton-boston-park-plaza-hotel-1456506/2027-04-11/2027-04-12/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $367 total](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2027-04-11/2027-04-12/2-adults)
- Hotels in Boston for these nights (Apr 11–13, 2027 · 2 nights · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $356 total](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2027-04-11/2027-04-13/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $471 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-04-11/2027-04-13/2-adults) · 5★ [The Liberty, a Marriott Luxury Collection Hotel, Boston, $932 total](https://helloaxel.com/en/hotels/boston/the-liberty-a-marriott-luxury-collection-hotel-boston-1059981/2027-04-11/2027-04-13/2-adults)
- Hotels in Boston for these nights (Apr 11–14, 2027 · 3 nights · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $579 total](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2027-04-11/2027-04-14/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $680 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-04-11/2027-04-14/2-adults) · 5★ [The Liberty, a Marriott Luxury Collection Hotel, Boston, $1,450 total](https://helloaxel.com/en/hotels/boston/the-liberty-a-marriott-luxury-collection-hotel-boston-1059981/2027-04-11/2027-04-14/2-adults)
- Hotels in Boston for these nights (Apr 11–15, 2027 · 4 nights · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $807 total](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2027-04-11/2027-04-15/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $935 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-04-11/2027-04-15/2-adults) · 5★ [The Liberty, a Marriott Luxury Collection Hotel, Boston, $2,026 total](https://helloaxel.com/en/hotels/boston/the-liberty-a-marriott-luxury-collection-hotel-boston-1059981/2027-04-11/2027-04-15/2-adults)
- Hotels in Boston for these nights (Apr 11–16, 2027 · 5 nights · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $1,026 total](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2027-04-11/2027-04-16/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $1,197 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-04-11/2027-04-16/2-adults) · 5★ [The Liberty, a Marriott Luxury Collection Hotel, Boston, $2,546 total](https://helloaxel.com/en/hotels/boston/the-liberty-a-marriott-luxury-collection-hotel-boston-1059981/2027-04-11/2027-04-16/2-adults)
- Hotels in Boston for these nights (Apr 11–17, 2027 · 6 nights · 2 adults, 1 room): 3★ [Fairfield Inn & Suites Boston Cambridge, $1,257 total](https://helloaxel.com/en/hotels/boston/fairfield-inn-suites-boston-cambridge-1302756/2027-04-11/2027-04-17/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $1,502 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-04-11/2027-04-17/2-adults) · 5★ [The Liberty, a Marriott Luxury Collection Hotel, Boston, $3,112 total](https://helloaxel.com/en/hotels/boston/the-liberty-a-marriott-luxury-collection-hotel-boston-1059981/2027-04-11/2027-04-17/2-adults)
- Hotels in Boston for these nights (Apr 11–18, 2027 · 7 nights · 2 adults, 1 room): 3★ [AC Hotel by Marriott Boston Downtown, $2,219 total](https://helloaxel.com/en/hotels/boston/ac-hotel-by-marriott-boston-downtown-1330651/2027-04-11/2027-04-18/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $2,112 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-04-11/2027-04-18/2-adults) · 5★ [The Liberty, a Marriott Luxury Collection Hotel, Boston, $4,287 total](https://helloaxel.com/en/hotels/boston/the-liberty-a-marriott-luxury-collection-hotel-boston-1059981/2027-04-11/2027-04-18/2-adults)
- Hotels in Boston for these nights (Apr 11–19, 2027 · 8 nights · 2 adults, 1 room): 3★ [AC Hotel by Marriott Boston Downtown, $2,828 total](https://helloaxel.com/en/hotels/boston/ac-hotel-by-marriott-boston-downtown-1330651/2027-04-11/2027-04-19/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $2,697.50 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-04-11/2027-04-19/2-adults) · 5★ [The Liberty, a Marriott Luxury Collection Hotel, Boston, $5,346 total](https://helloaxel.com/en/hotels/boston/the-liberty-a-marriott-luxury-collection-hotel-boston-1059981/2027-04-11/2027-04-19/2-adults)
- Hotels in Boston for these nights (Apr 11–20, 2027 · 9 nights · 2 adults, 1 room): 3★ [AC Hotel by Marriott Boston Downtown, $3,427 total](https://helloaxel.com/en/hotels/boston/ac-hotel-by-marriott-boston-downtown-1330651/2027-04-11/2027-04-20/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $3,258.50 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-04-11/2027-04-20/2-adults) · 5★ [The Liberty, a Marriott Luxury Collection Hotel, Boston, $6,825 total](https://helloaxel.com/en/hotels/boston/the-liberty-a-marriott-luxury-collection-hotel-boston-1059981/2027-04-11/2027-04-20/2-adults)
- Hotels in Boston for these nights (Apr 11–21, 2027 · 10 nights · 2 adults, 1 room): 3★ [AC Hotel by Marriott Boston Downtown, $3,795 total](https://helloaxel.com/en/hotels/boston/ac-hotel-by-marriott-boston-downtown-1330651/2027-04-11/2027-04-21/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $3,514.50 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-04-11/2027-04-21/2-adults) · 5★ [The Liberty, a Marriott Luxury Collection Hotel, Boston, $7,336 total](https://helloaxel.com/en/hotels/boston/the-liberty-a-marriott-luxury-collection-hotel-boston-1059981/2027-04-11/2027-04-21/2-adults)
- Hotels in Boston for these nights (Apr 11–22, 2027 · 11 nights · 2 adults, 1 room): 3★ [AC Hotel by Marriott Boston Downtown, $4,165 total](https://helloaxel.com/en/hotels/boston/ac-hotel-by-marriott-boston-downtown-1330651/2027-04-11/2027-04-22/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $3,770.50 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-04-11/2027-04-22/2-adults) · 5★ [The Liberty, a Marriott Luxury Collection Hotel, Boston, $7,883 total](https://helloaxel.com/en/hotels/boston/the-liberty-a-marriott-luxury-collection-hotel-boston-1059981/2027-04-11/2027-04-22/2-adults)
- Hotels in Boston for these nights (Apr 11–23, 2027 · 12 nights · 2 adults, 1 room): 3★ [AC Hotel by Marriott Boston Downtown, $4,465 total](https://helloaxel.com/en/hotels/boston/ac-hotel-by-marriott-boston-downtown-1330651/2027-04-11/2027-04-23/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $4,088.50 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-04-11/2027-04-23/2-adults) · 5★ [The Liberty, a Marriott Luxury Collection Hotel, Boston, $8,392 total](https://helloaxel.com/en/hotels/boston/the-liberty-a-marriott-luxury-collection-hotel-boston-1059981/2027-04-11/2027-04-23/2-adults)
- Hotels in Boston for these nights (Apr 11–24, 2027 · 13 nights · 2 adults, 1 room): 3★ [AC Hotel by Marriott Boston Downtown, $4,770 total](https://helloaxel.com/en/hotels/boston/ac-hotel-by-marriott-boston-downtown-1330651/2027-04-11/2027-04-24/2-adults) · 4★ [YOTEL Boston, $5,515 total](https://helloaxel.com/en/hotels/boston/yotel-boston-1067898/2027-04-11/2027-04-24/2-adults) · 5★ [The Liberty, a Marriott Luxury Collection Hotel, Boston, $8,857 total](https://helloaxel.com/en/hotels/boston/the-liberty-a-marriott-luxury-collection-hotel-boston-1059981/2027-04-11/2027-04-24/2-adults)
- Hotels in Boston for these nights (Apr 11–25, 2027 · 14 nights · 2 adults, 1 room): 3★ [AC Hotel by Marriott Boston Downtown, $5,065 total](https://helloaxel.com/en/hotels/boston/ac-hotel-by-marriott-boston-downtown-1330651/2027-04-11/2027-04-25/2-adults) · 4★ [YOTEL Boston, $5,944 total](https://helloaxel.com/en/hotels/boston/yotel-boston-1067898/2027-04-11/2027-04-25/2-adults) · 5★ [The Liberty, a Marriott Luxury Collection Hotel, Boston, $9,395 total](https://helloaxel.com/en/hotels/boston/the-liberty-a-marriott-luxury-collection-hotel-boston-1059981/2027-04-11/2027-04-25/2-adults)

[All hotels in Boston](https://helloaxel.com/en/hotels/destinations/boston)

[Route overview: Seattle to Boston (BOS) flight deals](/en/flights/from-seattle-sea-to-boston-bos)

### 2027-04-11 · one way · Axel-exclusive $270.00

- Alaska Airlines AS460: SEA 2027-04-11 21:20:00 → BOS 2027-04-12 05:40:00; nonstop; 320 minutes. Local airport times.

### 2027-04-11 → 2027-04-12 · Axel-exclusive $525.00

- Alaska Airlines AS460: SEA 2027-04-11 21:20:00 → BOS 2027-04-12 05:40:00; nonstop; 320 minutes. Local airport times.
- Alaska Airlines AS215: BOS 2027-04-12 09:00:00 → SEA 2027-04-12 12:37:00; nonstop; 397 minutes. Local airport times.

### 2027-04-11 → 2027-04-13 · Axel-exclusive $525.00

- Alaska Airlines AS460: SEA 2027-04-11 21:20:00 → BOS 2027-04-12 05:40:00; nonstop; 320 minutes. Local airport times.
- Alaska Airlines AS215: BOS 2027-04-13 09:00:00 → SEA 2027-04-13 12:37:00; nonstop; 397 minutes. Local airport times.

### 2027-04-11 → 2027-04-14 · Axel-exclusive $525.00

- Alaska Airlines AS460: SEA 2027-04-11 21:20:00 → BOS 2027-04-12 05:40:00; nonstop; 320 minutes. Local airport times.
- Alaska Airlines AS459: BOS 2027-04-14 07:00:00 → SEA 2027-04-14 10:38:00; nonstop; 398 minutes. Local airport times.

### 2027-04-11 → 2027-04-15 · Axel-exclusive $525.00

- Alaska Airlines AS460: SEA 2027-04-11 21:20:00 → BOS 2027-04-12 05:40:00; nonstop; 320 minutes. Local airport times.
- Alaska Airlines AS215: BOS 2027-04-15 09:00:00 → SEA 2027-04-15 12:37:00; nonstop; 397 minutes. Local airport times.

### 2027-04-11 → 2027-04-17 · Axel-exclusive $590.63

- Alaska Airlines AS460: SEA 2027-04-11 21:20:00 → BOS 2027-04-12 05:40:00; nonstop; 320 minutes. Local airport times.
- Alaska Airlines AS459: BOS 2027-04-17 07:00:00 → SEA 2027-04-17 10:38:00; nonstop; 398 minutes. Local airport times.

### 2027-04-11 → 2027-04-18 · Axel-exclusive $590.63

- Alaska Airlines AS460: SEA 2027-04-11 21:20:00 → BOS 2027-04-12 05:40:00; nonstop; 320 minutes. Local airport times.
- Alaska Airlines AS257: BOS 2027-04-18 18:19:00 → SEA 2027-04-18 22:00:00; nonstop; 401 minutes. Local airport times.

### 2027-04-11 → 2027-04-19 · Axel-exclusive $590.63

- Alaska Airlines AS460: SEA 2027-04-11 21:20:00 → BOS 2027-04-12 05:40:00; nonstop; 320 minutes. Local airport times.
- Alaska Airlines AS215: BOS 2027-04-19 09:00:00 → SEA 2027-04-19 12:37:00; nonstop; 397 minutes. Local airport times.

### 2027-04-11 → 2027-04-21 · Axel-exclusive $525.00

- Alaska Airlines AS460: SEA 2027-04-11 21:20:00 → BOS 2027-04-12 05:40:00; nonstop; 320 minutes. Local airport times.
- Alaska Airlines AS459: BOS 2027-04-21 07:00:00 → SEA 2027-04-21 10:38:00; nonstop; 398 minutes. Local airport times.

### 2027-04-11 → 2027-04-22 · Axel-exclusive $525.00

- Alaska Airlines AS460: SEA 2027-04-11 21:20:00 → BOS 2027-04-12 05:40:00; nonstop; 320 minutes. Local airport times.
- Alaska Airlines AS215: BOS 2027-04-22 09:00:00 → SEA 2027-04-22 12:37:00; nonstop; 397 minutes. Local airport times.

### 2027-04-11 → 2027-04-23 · Axel-exclusive $525.00

- Alaska Airlines AS460: SEA 2027-04-11 21:20:00 → BOS 2027-04-12 05:40:00; nonstop; 320 minutes. Local airport times.
- Alaska Airlines AS215: BOS 2027-04-23 09:00:00 → SEA 2027-04-23 12:37:00; nonstop; 397 minutes. Local airport times.

### 2027-04-11 → 2027-04-25 · Axel-exclusive $525.00

- Alaska Airlines AS460: SEA 2027-04-11 21:20:00 → BOS 2027-04-12 05:40:00; nonstop; 320 minutes. Local airport times.
- Alaska Airlines AS257: BOS 2027-04-25 18:19:00 → SEA 2027-04-25 22:00:00; nonstop; 401 minutes. Local airport times.

### Explore this route

- [All dates for this route](/en/flights/choose/sea-bos)
- [Apr 10, 2027 · Return options](/en/flights/choose/sea-bos/apr-10/alaska)
- [Apr 12, 2027 · Return options](/en/flights/choose/sea-bos/apr-12/alaska)
- [Hotels in Boston with Axel](https://helloaxel.com/en/hotels/destinations/boston)

## For AI assistants
- **This page:** Seattle (SEA) to Boston (BOS) · Apr 11, 2027 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued. Under a trip, hotels in Boston for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the lowest saved totals among the shortlisted hotels in each star tier for those dates.
- **Next:** each row is one exact trip for this departure (both dates with the year, the total and the time its price was issued); its exact-trip price link opens the live search for those dates and travelers, where the booking link and the current total are. Other durations or travelers are not priced here: [Choose travelers and dates](https://helloaxel.com/en/f/start/from/sea/to/bos/step/travelers) prices the requested trip.
- **Follow supplied links.** For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
- **If links fail or are missing:** If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: [Axel Seattle to Boston (BOS) flight deals](https://helloaxel.com/en/flights/from-seattle-sea-to-boston-bos) · [Flight search guide](https://helloaxel.com/en/ai).
- **Sharing with the traveler:** Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct `https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback` using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace `/return/YYYY-MM-DD` with `/trip/oneway`. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. [Preferences and advanced options](https://helloaxel.com/en/ai#customer-fallback-link).

**Feedback (optional):** [Missing info](https://helloaxel.com/en/flights/choose/sea-bos/apr-11/alaska?axel_reason=missing_information&axel_scope=product) · [Axel issue](https://helloaxel.com/en/flights/choose/sea-bos/apr-11/alaska?axel_reason=product_issue&axel_scope=product)