Seattle to London (LHR): April 2027 flight deals
Compare trip dates and fares.
Round-trip fare examples
Observed September 17, 2026 (UTC). Search a trip for current prices and flight details.
Round-trip totals in USD for 1 adult · Economy.
| Destination | Trip dates | Days | Axel Member | Airline fare | Stops | Search |
|---|---|---|---|---|---|---|
| London (LHR) | Apr 1–4, 2027 | 3 | $526 | $587 | 1 stop | Search for 1 adult · Dates · Travelers |
| London (LHR) | Apr 8–11, 2027 | 3 | $555 | $619 | 1 stop | Search for 1 adult · Dates · Travelers |
| London (LHR) | Apr 10–15, 2027 | 5 | $526 | $587 | 1 stop | Search for 1 adult · Dates · Travelers |
| London (LHR) | Apr 10–17, 2027 | 7 | $526 | $587 | 1 stop | Search for 1 adult · Dates · Travelers |
| London (LHR) | Apr 10–18, 2027 | 8 | $526 | $587 | 1 stop | Search for 1 adult · Dates · Travelers |
| London (LHR) | Apr 11–18, 2027 | 7 | $526 | $587 | 1 stop | Search for 1 adult · Dates · Travelers |
| London (LHR) | Apr 16–18, 2027 | 2 | $526 | $587 | 1 stop | Search for 1 adult · Dates · Travelers |
| London (LHR) | Apr 16–19, 2027 | 3 | $526 | $587 | 1 stop | Search for 1 adult · Dates · Travelers |
| London (LHR) | Apr 23–26, 2027 | 3 | $526 | $587 | 1 stop | Search for 1 adult · Dates · Travelers |
Compare trip dates
Observed September 19, 2026 (UTC). Check current prices.
USD for the listed travelers.
1 adult · Round-trip starting totals · 2–4 days
Starting totals are for the round trip. Choose a return flight to confirm the final total.
3 days between departure and return.
| Trip / travelers | Dates | Flights | Axel Member | Airline fare | Next step |
|---|---|---|---|---|---|
| SEA–LHR · 1 adult | Apr 16–19, 2027 | Out: FI · 1 stop (KEF) · 17h 20m | Round-trip starting total: $526 | Round-trip starting total: $587 — return selection pending | Search for 1 adult · Change dates · Travelers / cabin |
| SEA–LHR · 1 adult | Apr 16–19, 2027 | Out: British Airways · Nonstop · 9h 15m | Round-trip starting total: $772 | Round-trip starting total: $859 — return selection pending | Search for 1 adult · Change dates · Travelers / cabin |
1 adult · Round-trip starting totals · 5–9 days
| Trip / travelers | Dates | Flights | Axel Member | Airline fare | Next step |
|---|---|---|---|---|---|
| SEA–LHR · 1 adult | Apr 10–18, 2027 · 8 days | Out: FI · 1 stop (KEF) · 12h 15m | Round-trip starting total: $526 | Round-trip starting total: $587 — return selection pending | Search for 1 adult · Change dates · Travelers / cabin |
| SEA–LHR · 1 adult | Apr 10–18, 2027 · 8 days | Out: British Airways · Nonstop · 9h 15m | Round-trip starting total: $792 | Round-trip starting total: $881 — return selection pending | Search for 1 adult · Change dates · Travelers / cabin |
| SEA–LHR · 1 adult | Apr 10–17, 2027 · 7 days | Out: FI · 1 stop (KEF) · 12h 15m | Round-trip starting total: $526 | Round-trip starting total: $587 — return selection pending | Search for 1 adult · Change dates · Travelers / cabin |
| SEA–LHR · 1 adult | Apr 10–17, 2027 · 7 days | Out: British Airways · Nonstop · 9h 15m | Round-trip starting total: $812 | Round-trip starting total: $909 — return selection pending | Search for 1 adult · Change dates · Travelers / cabin |
Non-members can also book and save on airline fares. Live search shows prices with and without Membership. Optional Membership: $15 for the first month, then $10/month. Cancel anytime.
More flight comparisons from Seattle
- Seattle to London (LHR) flight deals
- Flights from Seattle in April 2027
- Seattle to Europe: April 2027 flight deals
- Compare flights from Seattle to Europe in April 2027
- Seattle to London (LHR) — spring break: flights April 10–15, 2027
- Seattle to London (LHR) — spring break: flights April 10–17, 2027
- Seattle to London (LHR) — spring break: flights April 10–18, 2027
- Seattle to London (LHR) — spring break: flights April 11–18, 2027
Browse this trip by month
AI assistants can follow these links to compare prices without an account, API key or connector. Flight search guide