Route overview: Boston to London (LHR) flight deals

Boston (BOS) to London (LHR), Mar 19, 2027: round trips from $590, one way from $420

Boston (BOS) to London (LHR), Mar 19, 2027: round trips from $590, one way from $420 on Axel, checked Oct 29, 2026. Lowest published fares: $590 round trip, Axel-exclusive, Aer Lingus, 1 stop, Mar 19–20, 2027; $420 one way, Axel-exclusive, Aer Lingus, 1 stop, Mar 19, 2027; 1 adult, economy, checked Oct 29, 2026.

BOS → LHR1 adulteconomyOne way and round trips

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One-way flights and round trips by duration. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

March 2027

Mar 19, 2027 · One wayAer LingusUp to 1 stop each way$420.00

Mar 19, 2027 – Mar 20, 2027 · 1 nightAer LingusUp to 1 stop each way$590.00

Hotels for these nights (Mar 19–20, 2027 · 1 night · 2 adults, 1 room): 3★ Point A Kensington Olympia $117 · 4★ Novotel London Tower Bridge $182 · 5★ The Egerton House Hotel $292

Mar 19, 2027 – Mar 21, 2027 · 2 nightsAer LingusUp to 1 stop each way$590.00

Hotels for these nights (Mar 19–21, 2027 · 2 nights · 2 adults, 1 room): 3★ Tavistock Hotel $257 · 4★ Novotel London Tower Bridge $441 · 5★ Royal Lancaster London $680

Mar 19, 2027 – Mar 22, 2027 · 3 nightsAer LingusUp to 1 stop each way$590.00

Hotels for these nights (Mar 19–22, 2027 · 3 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia $345 · 4★ Novotel London Tower Bridge $616 · 5★ Royal Lancaster London $997

Mar 19, 2027 – Mar 23, 2027 · 4 nightsAer LingusUp to 1 stop each way$590.00

Hotels for these nights (Mar 19–23, 2027 · 4 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia $431 · 4★ Aparthotel Adagio London City East $844 · 5★ Royal Lancaster London $1,323

Mar 19, 2027 – Mar 24, 2027 · 5 nightsAer LingusUp to 1 stop each way$590.00

Hotels for these nights (Mar 19–24, 2027 · 5 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia $547 · 4★ Aparthotel Adagio London City East $1,125 · 5★ The Egerton House Hotel $1,634

Mar 19, 2027 – Mar 25, 2027 · 6 nightsAer LingusUp to 1 stop each way$649.00

Hotels for these nights (Mar 19–25, 2027 · 6 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia $660 · 4★ Aparthotel Adagio London City East $1,386 · 5★ The Egerton House Hotel $1,926

Mar 19, 2027 – Mar 26, 2027 · 7 nightsAer LingusUp to 1 stop each way$649.00

Hotels for these nights (Mar 19–26, 2027 · 7 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia $759 · 4★ Aparthotel Adagio London City East $1,578 · 5★ The Egerton House Hotel $2,218

Mar 19, 2027 – Mar 27, 2027 · 8 nightsAer LingusUp to 1 stop each way$649.00

Hotels for these nights (Mar 19–27, 2027 · 8 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia $870 · 4★ Aparthotel Adagio London City East $1,795 · 5★ The Egerton House Hotel $2,511

Mar 19, 2027 – Mar 28, 2027 · 9 nightsAer LingusUp to 1 stop each way$793.00

Hotels for these nights (Mar 19–28, 2027 · 9 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia $1,006 · 4★ Aparthotel Adagio London City East $2,051 · 5★ The Egerton House Hotel $2,853

Mar 19, 2027 – Mar 29, 2027 · 10 nightsAer LingusUp to 1 stop each way$793.00

Hotels for these nights (Mar 19–29, 2027 · 10 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia $1,094 · 4★ Aparthotel Adagio London City East $2,207 · 5★ The Egerton House Hotel $3,141

Mar 19, 2027 – Mar 30, 2027 · 11 nightsAer LingusUp to 1 stop each way$793.00

Hotels for these nights (Mar 19–30, 2027 · 11 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia $1,174 · 4★ Aparthotel Adagio London City East $2,375 · 5★ The Egerton House Hotel $3,429

Mar 19, 2027 – Mar 31, 2027 · 12 nightsAer LingusUp to 1 stop each way$793.00

Hotels for these nights (Mar 19–31, 2027 · 12 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia $1,274 · 4★ Aparthotel Adagio London City East $2,635 · 5★ The Egerton House Hotel $3,721

Mar 19, 2027 – Apr 1, 2027 · 13 nightsAer LingusUp to 1 stop each way$805.45

Hotels for these nights (Mar 19 – Apr 1, 2027 · 13 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia $1,372 · 4★ Aparthotel Adagio London City East $2,895 · 5★ The Egerton House Hotel $4,020

Mar 19, 2027 – Apr 2, 2027 · 14 nightsAer LingusUp to 1 stop each way$805.45

Hotels for these nights (Mar 19 – Apr 2, 2027 · 14 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia $1,487 · 4★ Aparthotel Adagio London City East $3,100 · 5★ The Egerton House Hotel $4,312

Flights for your trip

Fri, Mar 19 · One way
Aer Lingus
6:50 pmBOS
9h 25m
SNN · 2h
8:15 am+1LHR
One-way total · 1 adult · Taxes included
Availability is checked when you select these flights.
Fri, Mar 19 – Sat, Mar 20
Aer Lingus
6:50 pmBOS
9h 25m
SNN · 2h
8:15 am+1LHR
Aer Lingus
10:00 amLHR
11h 15m
SNN · 2h 30m
5:15 pmBOS
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Fri, Mar 19 – Sun, Mar 21
Aer Lingus
6:50 pmBOS
9h 25m
SNN · 2h
8:15 am+1LHR
Aer Lingus
10:00 amLHR
11h 15m
SNN · 2h 30m
5:15 pmBOS
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Fri, Mar 19 – Mon, Mar 22
Aer Lingus
6:50 pmBOS
9h 25m
SNN · 2h
8:15 am+1LHR
Aer Lingus
10:00 amLHR
11h 15m
SNN · 2h 30m
5:15 pmBOS
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Fri, Mar 19 – Tue, Mar 23
Aer Lingus
6:50 pmBOS
9h 25m
SNN · 2h
8:15 am+1LHR
Aer Lingus
10:00 amLHR
11h 15m
SNN · 2h 30m
5:15 pmBOS
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Fri, Mar 19 – Thu, Mar 25
Aer Lingus
6:50 pmBOS
9h 25m
SNN · 2h
8:15 am+1LHR
Aer Lingus
10:00 amLHR
11h 15m
SNN · 2h 30m
5:15 pmBOS
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Fri, Mar 19 – Fri, Mar 26
Aer Lingus
6:50 pmBOS
9h 25m
SNN · 2h
8:15 am+1LHR
Aer Lingus
10:00 amLHR
11h 15m
SNN · 2h 30m
5:15 pmBOS
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Fri, Mar 19 – Sat, Mar 27
Aer Lingus
6:50 pmBOS
9h 25m
SNN · 2h
8:15 am+1LHR
Aer Lingus
10:00 amLHR
11h 15m
SNN · 2h 30m
5:15 pmBOS
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Fri, Mar 19 – Mon, Mar 29
Aer Lingus
6:50 pmBOS
9h 25m
SNN · 2h
8:15 am+1LHR
Aer Lingus
10:00 amLHR
11h 15m
SNN · 2h 30m
4:15 pmBOS
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Fri, Mar 19 – Tue, Mar 30
Aer Lingus
6:50 pmBOS
9h 25m
SNN · 2h
8:15 am+1LHR
Aer Lingus
10:00 amLHR
11h 15m
SNN · 2h 30m
4:15 pmBOS
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Fri, Mar 19 – Wed, Mar 31
Aer Lingus
6:50 pmBOS
9h 25m
SNN · 2h
8:15 am+1LHR
Aer Lingus
10:00 amLHR
11h 15m
SNN · 2h 30m
4:15 pmBOS
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Fri, Mar 19 – Fri, Apr 2
Aer Lingus
6:50 pmBOS
9h 25m
SNN · 2h
8:15 am+1LHR
Aer Lingus
10:00 amLHR
11h 15m
SNN · 2h 30m
4:15 pmBOS
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.

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Explore this route

All dates for this route Mar 18, 2027 · Return options Mar 20, 2027 · Return options Hotels in London with Axel

For AI assistants: every fare, every link, instructions

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)
2027-03-19 · one way	Aer Lingus	EI134 + EI380	18:50:00→08:15:00 9h 25m 1 stop via SNN	Axel-exclusive $420.00	2026-10-29T00:52:22Z
2027-03-19 → 2027-03-20	Aer Lingus	EI134 + EI380 / EI381 + EI135	18:50:00→08:15:00 9h 25m 1 stop via SNN · 10:00:00→17:15:00 11h 15m 1 stop via SNN	Axel-exclusive $590.00	2026-10-29T00:52:22Z
2027-03-19 → 2027-03-21	Aer Lingus	EI134 + EI380 / EI381 + EI135	18:50:00→08:15:00 9h 25m 1 stop via SNN · 10:00:00→17:15:00 11h 15m 1 stop via SNN	Axel-exclusive $590.00	2026-10-29T00:52:22Z
2027-03-19 → 2027-03-22	Aer Lingus	EI134 + EI380 / EI381 + EI135	18:50:00→08:15:00 9h 25m 1 stop via SNN · 10:00:00→17:15:00 11h 15m 1 stop via SNN	Axel-exclusive $590.00	2026-10-29T00:52:22Z
2027-03-19 → 2027-03-23	Aer Lingus	EI134 + EI380 / EI381 + EI135	18:50:00→08:15:00 9h 25m 1 stop via SNN · 10:00:00→17:15:00 11h 15m 1 stop via SNN	Axel-exclusive $590.00	2026-10-29T00:52:22Z
2027-03-19 → 2027-03-24	Aer Lingus	EI134 + EI380 / EI381 + EI135	18:50:00→08:15:00 9h 25m 1 stop via SNN · 10:00:00→17:15:00 11h 15m 1 stop via SNN	Axel-exclusive $590.00	2026-10-29T00:52:22Z
2027-03-19 → 2027-03-25	Aer Lingus	EI134 + EI380 / EI381 + EI135	18:50:00→08:15:00 9h 25m 1 stop via SNN · 10:00:00→17:15:00 11h 15m 1 stop via SNN	Axel-exclusive $649.00	2026-10-29T00:52:22Z
2027-03-19 → 2027-03-26	Aer Lingus	EI134 + EI380 / EI381 + EI135	18:50:00→08:15:00 9h 25m 1 stop via SNN · 10:00:00→17:15:00 11h 15m 1 stop via SNN	Axel-exclusive $649.00	2026-10-29T00:52:22Z
2027-03-19 → 2027-03-27	Aer Lingus	EI134 + EI380 / EI381 + EI135	18:50:00→08:15:00 9h 25m 1 stop via SNN · 10:00:00→17:15:00 11h 15m 1 stop via SNN	Axel-exclusive $649.00	2026-10-29T00:52:22Z
2027-03-19 → 2027-03-28	Aer Lingus	EI134 + EI380 / EI381 + EI135	18:50:00→08:15:00 9h 25m 1 stop via SNN · 10:00:00→16:15:00 11h 15m 1 stop via SNN	Axel-exclusive $793.00	2026-10-29T00:52:22Z
2027-03-19 → 2027-03-29	Aer Lingus	EI134 + EI380 / EI381 + EI135	18:50:00→08:15:00 9h 25m 1 stop via SNN · 10:00:00→16:15:00 11h 15m 1 stop via SNN	Axel-exclusive $793.00	2026-10-29T00:52:22Z
2027-03-19 → 2027-03-30	Aer Lingus	EI134 + EI380 / EI381 + EI135	18:50:00→08:15:00 9h 25m 1 stop via SNN · 10:00:00→16:15:00 11h 15m 1 stop via SNN	Axel-exclusive $793.00	2026-10-29T00:52:22Z
2027-03-19 → 2027-03-31	Aer Lingus	EI134 + EI380 / EI381 + EI135	18:50:00→08:15:00 9h 25m 1 stop via SNN · 10:00:00→16:15:00 11h 15m 1 stop via SNN	Axel-exclusive $793.00	2026-10-29T00:52:22Z
2027-03-19 → 2027-04-01	Aer Lingus	EI134 + EI380 / EI381 + EI135	18:50:00→08:15:00 9h 25m 1 stop via SNN · 10:00:00→16:15:00 11h 15m 1 stop via SNN	Axel-exclusive $805.45	2026-10-29T00:52:22Z
2027-03-19 → 2027-04-02	Aer Lingus	EI134 + EI380 / EI381 + EI135	18:50:00→08:15:00 9h 25m 1 stop via SNN · 10:00:00→16:15:00 11h 15m 1 stop via SNN	Axel-exclusive $805.45	2026-10-29T00:52:22Z

Hotels in London for these trips

Hotels: under a trip, hotels in London 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 London for these nights (Mar 19–20, 2027 · 1 night · 2 adults, 1 room): 3★ Point A Kensington Olympia, $117 total · 4★ Novotel London Tower Bridge, $182 total · 5★ The Egerton House Hotel, $292 total
Hotels in London for these nights (Mar 19–21, 2027 · 2 nights · 2 adults, 1 room): 3★ Tavistock Hotel, $257 total · 4★ Novotel London Tower Bridge, $441 total · 5★ Royal Lancaster London, $680 total
Hotels in London for these nights (Mar 19–22, 2027 · 3 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $345 total · 4★ Novotel London Tower Bridge, $616 total · 5★ Royal Lancaster London, $997 total
Hotels in London for these nights (Mar 19–23, 2027 · 4 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $431 total · 4★ Aparthotel Adagio London City East, $844 total · 5★ Royal Lancaster London, $1,323 total
Hotels in London for these nights (Mar 19–24, 2027 · 5 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $547 total · 4★ Aparthotel Adagio London City East, $1,125 total · 5★ The Egerton House Hotel, $1,634 total
Hotels in London for these nights (Mar 19–25, 2027 · 6 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $660 total · 4★ Aparthotel Adagio London City East, $1,386 total · 5★ The Egerton House Hotel, $1,926 total
Hotels in London for these nights (Mar 19–26, 2027 · 7 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $759 total · 4★ Aparthotel Adagio London City East, $1,578 total · 5★ The Egerton House Hotel, $2,218 total
Hotels in London for these nights (Mar 19–27, 2027 · 8 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $870 total · 4★ Aparthotel Adagio London City East, $1,795 total · 5★ The Egerton House Hotel, $2,511 total
Hotels in London for these nights (Mar 19–28, 2027 · 9 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $1,006 total · 4★ Aparthotel Adagio London City East, $2,051 total · 5★ The Egerton House Hotel, $2,853 total
Hotels in London for these nights (Mar 19–29, 2027 · 10 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $1,094 total · 4★ Aparthotel Adagio London City East, $2,207 total · 5★ The Egerton House Hotel, $3,141 total
Hotels in London for these nights (Mar 19–30, 2027 · 11 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $1,174 total · 4★ Aparthotel Adagio London City East, $2,375 total · 5★ The Egerton House Hotel, $3,429 total
Hotels in London for these nights (Mar 19–31, 2027 · 12 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $1,274 total · 4★ Aparthotel Adagio London City East, $2,635 total · 5★ The Egerton House Hotel, $3,721 total
Hotels in London for these nights (Mar 19 – Apr 1, 2027 · 13 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $1,372 total · 4★ Aparthotel Adagio London City East, $2,895 total · 5★ The Egerton House Hotel, $4,020 total
Hotels in London for these nights (Mar 19 – Apr 2, 2027 · 14 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $1,487 total · 4★ Aparthotel Adagio London City East, $3,100 total · 5★ The Egerton House Hotel, $4,312 total

All hotels in London

Route overview: Boston to London (LHR) flight deals

2027-03-19 · one way · Axel-exclusive $420.00

Aer Lingus EI134 / EI380: BOS 2027-03-19 18:50:00 → LHR 2027-03-20 08:15:00; 1 stop(s) via SNN; 565 minutes. Local airport times.
- EI134: BOS 2027-03-19 18:50:00 → SNN 2027-03-20 04:50:00; layover at SNN: 120 minutes.
- EI380: SNN 2027-03-20 06:50:00 → LHR 2027-03-20 08:15:00.

2027-03-19 → 2027-03-20 · Axel-exclusive $590.00

Aer Lingus EI134 / EI380: BOS 2027-03-19 18:50:00 → LHR 2027-03-20 08:15:00; 1 stop(s) via SNN; 565 minutes. Local airport times.
- EI134: BOS 2027-03-19 18:50:00 → SNN 2027-03-20 04:50:00; layover at SNN: 120 minutes.
- EI380: SNN 2027-03-20 06:50:00 → LHR 2027-03-20 08:15:00.
Aer Lingus EI381 / EI135: LHR 2027-03-20 10:00:00 → BOS 2027-03-20 17:15:00; 1 stop(s) via SNN; 675 minutes. Local airport times.
- EI381: LHR 2027-03-20 10:00:00 → SNN 2027-03-20 11:30:00; layover at SNN: 150 minutes.
- EI135: SNN 2027-03-20 14:00:00 → BOS 2027-03-20 17:15:00.

2027-03-19 → 2027-03-21 · Axel-exclusive $590.00

Aer Lingus EI134 / EI380: BOS 2027-03-19 18:50:00 → LHR 2027-03-20 08:15:00; 1 stop(s) via SNN; 565 minutes. Local airport times.
- EI134: BOS 2027-03-19 18:50:00 → SNN 2027-03-20 04:50:00; layover at SNN: 120 minutes.
- EI380: SNN 2027-03-20 06:50:00 → LHR 2027-03-20 08:15:00.
Aer Lingus EI381 / EI135: LHR 2027-03-21 10:00:00 → BOS 2027-03-21 17:15:00; 1 stop(s) via SNN; 675 minutes. Local airport times.
- EI381: LHR 2027-03-21 10:00:00 → SNN 2027-03-21 11:30:00; layover at SNN: 150 minutes.
- EI135: SNN 2027-03-21 14:00:00 → BOS 2027-03-21 17:15:00.

2027-03-19 → 2027-03-22 · Axel-exclusive $590.00

Aer Lingus EI134 / EI380: BOS 2027-03-19 18:50:00 → LHR 2027-03-20 08:15:00; 1 stop(s) via SNN; 565 minutes. Local airport times.
- EI134: BOS 2027-03-19 18:50:00 → SNN 2027-03-20 04:50:00; layover at SNN: 120 minutes.
- EI380: SNN 2027-03-20 06:50:00 → LHR 2027-03-20 08:15:00.
Aer Lingus EI381 / EI135: LHR 2027-03-22 10:00:00 → BOS 2027-03-22 17:15:00; 1 stop(s) via SNN; 675 minutes. Local airport times.
- EI381: LHR 2027-03-22 10:00:00 → SNN 2027-03-22 11:30:00; layover at SNN: 150 minutes.
- EI135: SNN 2027-03-22 14:00:00 → BOS 2027-03-22 17:15:00.

2027-03-19 → 2027-03-23 · Axel-exclusive $590.00

Aer Lingus EI134 / EI380: BOS 2027-03-19 18:50:00 → LHR 2027-03-20 08:15:00; 1 stop(s) via SNN; 565 minutes. Local airport times.
- EI134: BOS 2027-03-19 18:50:00 → SNN 2027-03-20 04:50:00; layover at SNN: 120 minutes.
- EI380: SNN 2027-03-20 06:50:00 → LHR 2027-03-20 08:15:00.
Aer Lingus EI381 / EI135: LHR 2027-03-23 10:00:00 → BOS 2027-03-23 17:15:00; 1 stop(s) via SNN; 675 minutes. Local airport times.
- EI381: LHR 2027-03-23 10:00:00 → SNN 2027-03-23 11:30:00; layover at SNN: 150 minutes.
- EI135: SNN 2027-03-23 14:00:00 → BOS 2027-03-23 17:15:00.

2027-03-19 → 2027-03-25 · Axel-exclusive $649.00

Aer Lingus EI134 / EI380: BOS 2027-03-19 18:50:00 → LHR 2027-03-20 08:15:00; 1 stop(s) via SNN; 565 minutes. Local airport times.
- EI134: BOS 2027-03-19 18:50:00 → SNN 2027-03-20 04:50:00; layover at SNN: 120 minutes.
- EI380: SNN 2027-03-20 06:50:00 → LHR 2027-03-20 08:15:00.
Aer Lingus EI381 / EI135: LHR 2027-03-25 10:00:00 → BOS 2027-03-25 17:15:00; 1 stop(s) via SNN; 675 minutes. Local airport times.
- EI381: LHR 2027-03-25 10:00:00 → SNN 2027-03-25 11:30:00; layover at SNN: 150 minutes.
- EI135: SNN 2027-03-25 14:00:00 → BOS 2027-03-25 17:15:00.

2027-03-19 → 2027-03-26 · Axel-exclusive $649.00

Aer Lingus EI134 / EI380: BOS 2027-03-19 18:50:00 → LHR 2027-03-20 08:15:00; 1 stop(s) via SNN; 565 minutes. Local airport times.
- EI134: BOS 2027-03-19 18:50:00 → SNN 2027-03-20 04:50:00; layover at SNN: 120 minutes.
- EI380: SNN 2027-03-20 06:50:00 → LHR 2027-03-20 08:15:00.
Aer Lingus EI381 / EI135: LHR 2027-03-26 10:00:00 → BOS 2027-03-26 17:15:00; 1 stop(s) via SNN; 675 minutes. Local airport times.
- EI381: LHR 2027-03-26 10:00:00 → SNN 2027-03-26 11:30:00; layover at SNN: 150 minutes.
- EI135: SNN 2027-03-26 14:00:00 → BOS 2027-03-26 17:15:00.

2027-03-19 → 2027-03-27 · Axel-exclusive $649.00

Aer Lingus EI134 / EI380: BOS 2027-03-19 18:50:00 → LHR 2027-03-20 08:15:00; 1 stop(s) via SNN; 565 minutes. Local airport times.
- EI134: BOS 2027-03-19 18:50:00 → SNN 2027-03-20 04:50:00; layover at SNN: 120 minutes.
- EI380: SNN 2027-03-20 06:50:00 → LHR 2027-03-20 08:15:00.
Aer Lingus EI381 / EI135: LHR 2027-03-27 10:00:00 → BOS 2027-03-27 17:15:00; 1 stop(s) via SNN; 675 minutes. Local airport times.
- EI381: LHR 2027-03-27 10:00:00 → SNN 2027-03-27 11:30:00; layover at SNN: 150 minutes.
- EI135: SNN 2027-03-27 14:00:00 → BOS 2027-03-27 17:15:00.

2027-03-19 → 2027-03-29 · Axel-exclusive $793.00

Aer Lingus EI134 / EI380: BOS 2027-03-19 18:50:00 → LHR 2027-03-20 08:15:00; 1 stop(s) via SNN; 565 minutes. Local airport times.
- EI134: BOS 2027-03-19 18:50:00 → SNN 2027-03-20 04:50:00; layover at SNN: 120 minutes.
- EI380: SNN 2027-03-20 06:50:00 → LHR 2027-03-20 08:15:00.
Aer Lingus EI381 / EI135: LHR 2027-03-29 10:00:00 → BOS 2027-03-29 16:15:00; 1 stop(s) via SNN; 675 minutes. Local airport times.
- EI381: LHR 2027-03-29 10:00:00 → SNN 2027-03-29 11:30:00; layover at SNN: 150 minutes.
- EI135: SNN 2027-03-29 14:00:00 → BOS 2027-03-29 16:15:00.

2027-03-19 → 2027-03-30 · Axel-exclusive $793.00

Aer Lingus EI134 / EI380: BOS 2027-03-19 18:50:00 → LHR 2027-03-20 08:15:00; 1 stop(s) via SNN; 565 minutes. Local airport times.
- EI134: BOS 2027-03-19 18:50:00 → SNN 2027-03-20 04:50:00; layover at SNN: 120 minutes.
- EI380: SNN 2027-03-20 06:50:00 → LHR 2027-03-20 08:15:00.
Aer Lingus EI381 / EI135: LHR 2027-03-30 10:00:00 → BOS 2027-03-30 16:15:00; 1 stop(s) via SNN; 675 minutes. Local airport times.
- EI381: LHR 2027-03-30 10:00:00 → SNN 2027-03-30 11:30:00; layover at SNN: 150 minutes.
- EI135: SNN 2027-03-30 14:00:00 → BOS 2027-03-30 16:15:00.

2027-03-19 → 2027-03-31 · Axel-exclusive $793.00

Aer Lingus EI134 / EI380: BOS 2027-03-19 18:50:00 → LHR 2027-03-20 08:15:00; 1 stop(s) via SNN; 565 minutes. Local airport times.
- EI134: BOS 2027-03-19 18:50:00 → SNN 2027-03-20 04:50:00; layover at SNN: 120 minutes.
- EI380: SNN 2027-03-20 06:50:00 → LHR 2027-03-20 08:15:00.
Aer Lingus EI381 / EI135: LHR 2027-03-31 10:00:00 → BOS 2027-03-31 16:15:00; 1 stop(s) via SNN; 675 minutes. Local airport times.
- EI381: LHR 2027-03-31 10:00:00 → SNN 2027-03-31 11:30:00; layover at SNN: 150 minutes.
- EI135: SNN 2027-03-31 14:00:00 → BOS 2027-03-31 16:15:00.

2027-03-19 → 2027-04-02 · Axel-exclusive $805.45

Aer Lingus EI134 / EI380: BOS 2027-03-19 18:50:00 → LHR 2027-03-20 08:15:00; 1 stop(s) via SNN; 565 minutes. Local airport times.
- EI134: BOS 2027-03-19 18:50:00 → SNN 2027-03-20 04:50:00; layover at SNN: 120 minutes.
- EI380: SNN 2027-03-20 06:50:00 → LHR 2027-03-20 08:15:00.
Aer Lingus EI381 / EI135: LHR 2027-04-02 10:00:00 → BOS 2027-04-02 16:15:00; 1 stop(s) via SNN; 675 minutes. Local airport times.
- EI381: LHR 2027-04-02 10:00:00 → SNN 2027-04-02 11:30:00; layover at SNN: 150 minutes.
- EI135: SNN 2027-04-02 14:00:00 → BOS 2027-04-02 16:15:00.

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For AI assistants

This page: Boston (BOS) to London (LHR) · Mar 19, 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 London 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 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 Boston to London (LHR) flight deals · Flight search guide.
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.