London to Bilbao LCY, LGW, LHR, LTN, STN → BIO
London City Airport (LCY), London Gatwick Airport (LGW), London Heathrow Airport (LHR), London Luton Airport (LTN), Stansted Airport (STN) → Bilbao Airport (BIO)
The cheapest return found recently is $308 with AirDolomiti, 16 Dec – 6 Jan 2027, found yesterday. The cheapest one-way found recently is $41 with Vueling, 29 Oct, found today.
Return
The cheapest return fare on each of 4 departure dates is usually $101 to $279.
Cheapest return found recently
$308
16 Dec – 6 Jan 2027 · AirDolomiti
London City Airport (LCY) → Bilbao Airport (BIO)
Leaves 9:50 a.m. · Return leaves 9:50 a.m. · 20 h 15 min of travel, both ways together
out 1 stop, back 1 stop
found yesterday
Cheapest nonstop return
$101
18 Nov – 22 Nov · Vueling
London Heathrow Airport (LHR) → Bilbao Airport (BIO)
Leaves 3:30 p.m. · Return leaves 1:45 p.m. · 4 h 5 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Found recently, and the cheapest we hold
$308 16 Dec – 6 Jan 2027found yesterdaySee prices for these dates
$101 18 Nov – 22 Novfound 2 days agoSee prices for these dates
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $49 to $87.
At $308, the cheapest return found recently is above that range.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 4 departure dates from 25 Oct to 16 Dec, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 21-night return fares leaving within 3 days of 16 Dec to compare.
Every date we hold
10 fares on 4 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 25 Oct – 1 Nov | $269 | Wizz Air UK | London Gatwick Airport (LGW) → Bilbao Airport (BIO) | out 1 stop, back 2 stops | found 6 days ago | See prices for these dates |
| 18 Nov – 22 Nov | $101 | Vueling | London Heathrow Airport (LHR) → Bilbao Airport (BIO) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 19 Nov – 26 Nov | $101 | Wizz Air UK | London Luton Airport (LTN) → Bilbao Airport (BIO) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 16 Dec – 6 Jan 2027 | $308 | AirDolomiti | London City Airport (LCY) → Bilbao Airport (BIO) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $101.
Airlines on the cheapest dates: Wizz Air UK, Vueling, AirDolomiti.
One-way
The cheapest one-way fare on each of 5 departure dates is usually $32 to $42.
Cheapest one-way found recently
$41
29 Oct · Vueling
London Heathrow Airport (LHR) → Bilbao Airport (BIO)
Leaves 6:50 p.m. · 2 h 5 min trip
nonstop
found today
Cheapest nonstop one-way
$41
29 Oct · Vueling
London Heathrow Airport (LHR) → Bilbao Airport (BIO)
Leaves 6:50 p.m. · 2 h 5 min trip
nonstop
found today
Found recently, and the cheapest we hold
$41 29 Octfound todayOpen this trip
$30 15 Decfound 4 days agoOpen this trip
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $27 to $33.
At $41, the cheapest one-way found recently is above that range.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 5 departure dates from 27 Oct to 15 Dec, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
No. We hold one-way fares on 1 other departure date within 3 days of 29 Oct, and it is not cheaper.
Every date we hold
7 fares on 5 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 27 Oct | $42 | Vueling | London Heathrow Airport (LHR) → Bilbao Airport (BIO) | nonstop | found 2 days ago | Open this trip |
| 29 Oct | $41 | Vueling | London Heathrow Airport (LHR) → Bilbao Airport (BIO) | nonstop | found today | Open this trip |
| 10 Nov | $32 | Vueling | London Gatwick Airport (LGW) → Bilbao Airport (BIO) | nonstop | found 4 days ago | Open this trip |
| 11 Dec | $45 | Vueling | London Heathrow Airport (LHR) → Bilbao Airport (BIO) | nonstop | found 6 days ago | Open this trip |
| 15 Dec | $30 | Vueling | London Gatwick Airport (LGW) → Bilbao Airport (BIO) | nonstop | found 4 days ago | Open this trip |
Which month looks cheapest?
December 2026 is the cheapest month — from $30.
Airlines on the cheapest dates: Vueling.
Premium cabin fares from London to Bilbao
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 16 Dec – 6 Jan 2027 in another cabin: Premium economy · Business · First
Today's prices for 29 Oct in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for London to Bilbao?
Return
Fares 14 to 29 days before departure were typically 51% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 18 Oct (25 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $104 | $56 | +104% | 19 |
| 7–13 days | $149 | $51 | +192% | 16 |
| 14–29 days | $51 | $49 | Cheapest seen | 25 |
| 30–59 days | $60 | $58 | +18% | 21 |
| 60–89 days | $129 | $60 | +152% | 16 |
| 90–179 days | $200 | $76 | +292% | 9 |
| 180+ days | $99 | $99 | +94% | 8 |
One-way
Fares 30 to 59 days before departure were typically 31% lower than 0 to 6 days before departure.
From the cheapest one-way each day between 24 Sept and 18 Oct (25 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $42 | $35 | +45% | 17 |
| 7–13 days | $39 | $35 | +35% | 12 |
| 14–29 days | $34 | $32 | +17% | 17 |
| 30–59 days | $29 | $27 | Cheapest seen | 25 |
| 60–89 days | $31 | $30 | +7% | 18 |
| 90–179 days | $38 | $33 | +31% | 15 |
| 180+ days | $72 | $72 | +148% | 8 |
Live price for these dates
The cheapest return found recently is for 16 Dec – 6 Jan 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work