Air France/KLM Flying Blue award flights from St. Louis (STL) to London Heathrow (LHR)
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In the last 30 days AwardTool saw Air France/KLM Flying Blue award space for STL→LHR in economy, premium economy and business class. Lowest economy: 30,000 miles + $38.00 (economy space on 64 dates). Lowest business class: 98,000 miles + $243.40 (business-class space on 26 dates). Lowest premium economy: 57,730 miles + $161.40 (premium economy space on 14 dates).
Prices observed – ; newest observation .
Page regenerated from the Oct 19, 2026 data snapshot (normally daily). Summary last changed . Seats change quickly.
- Lowest economy
- 30,000 miles + $38.00
- economy space on 64 dates
- Lowest business class
- 98,000 miles + $243.40
- business-class space on 26 dates
- Lowest premium economy
- 57,730 miles + $161.40
- premium economy space on 14 dates
Flying Blue award prices by cabin
The lowest one-way Air France/KLM Flying Blue award AwardTool observed on STL→LHR in each cabin, in miles plus taxes.
| Cabin | Points + taxes | Stops | Airlines seen | Seats | Dates seen | Newest observation | |
|---|---|---|---|---|---|---|---|
| Economy | 30,000 miles + $38.00 | 1 stop | Delta Air Lines (DL), Virgin Atlantic (VS) | 9+ | 64 | See dates | |
| Premium Economy | 57,730 miles + $161.40 | 1 stop | Delta Air Lines (DL), Virgin Atlantic (VS) | 3 | 14 | See dates | |
| Business | 98,000 miles + $243.40 | 1 stop | Delta Air Lines (DL), Virgin Atlantic (VS) | 3 | 26 | See dates |
Not seen means AwardTool hasn't observed this cabin on this route in the last 30 days. It doesn't mean the airline has no seats. Dates seen counts departure dates with an open award in that cabin at any price; newest observation is the latest time AwardTool saw one of them. Seats is the count the program reported when we observed it; some programs report at most 9.
Observed Flying Blue award examples
| Departure | Cabin | Points + taxes | Seats | Stops | Observed (UTC) | |
|---|---|---|---|---|---|---|
| Economy | 30,000 miles + $38.00 | 9+ | 1 stop | Check this date | ||
| Economy | 31,500 miles + $38.00 | 9+ | 1 stop | Check this date | ||
| Economy | 32,000 miles + $38.00 | 9+ | 1 stop | Check this date | ||
| Business | 99,500 miles + $242.30 | 2 | 1 stop | Check this date |
Prices are one-way per traveler: the program's points or miles plus taxes and carrier fees in USD, as AwardTool observed them in the observation window. Award space changes constantly. A seat we saw may be gone, and space we haven't seen may exist. Always confirm with a live search before transferring points; most transfers can't be reversed.
How often Flying Blue award space showed up
Departure dates in the next 365 days that AwardTool checked for Air France/KLM Flying Blue in the last 30 days, how many had award space in each cabin at any price, and the latest departure with space.
| Cabin | Dates with space | Share of dates checked | Latest departure with space |
|---|---|---|---|
| Economy | 64 of 87 | 73% | |
| Premium Economy | 14 of 87 | 16% | |
| Business | 26 of 87 | 29% |
Best months to fly from St. Louis (STL) to London Heathrow (LHR) with Flying Blue
| Month | Economy | Premium Economy | Business |
|---|---|---|---|
| 33,000 (1 date) | — | — | |
| 30,000 (14 dates) | — | — | |
| 31,500 (5 dates) | — | 99,500 (1 date) | |
| 30,000 (17 dates) | 57,730 (8 dates) | 99,500 (14 dates) | |
| 31,500 (1 date) | — | 99,000 (1 date) | |
| 34,500 (6 dates) | — | — | |
| 34,500 (8 dates) | 64,320 (1 date) | 99,500 (1 date) | |
| 34,500 (9 dates) | 63,410 (4 dates) | 98,000 (6 dates) | |
| 34,500 (3 dates) | 63,410 (1 date) | 98,000 (3 dates) |
How to get Flying Blue miles
- American Express Membership Rewards: 1:1 · Instant
- Bilt Rewards: 1:1 · Instant
- Capital One Miles: 1:1 · Instant
- Chase Ultimate Rewards: 1:1 · Instant
- Citi ThankYou Points: 1:1 · Instant
- Wells Fargo Rewards: 1:1 · Instant
Check current transfer bonuses. Most transfers can't be reversed.
Flying Blue vs other programs from St. Louis (STL) to London Heathrow (LHR)
Lowest one-way award per program and cabin on this route.
| Program | Economy | Premium Economy | Business | First |
|---|---|---|---|---|
| Air Canada Aeroplan | 40,000 pts + $75.61 | 69,452 pts + $59.41 | 75,000 pts + $120.31 | 485,012 pts + $83.61Mixed cabin |
| Air France/KLM Flying Blue | 30,000 pts + $38.00 | 57,730 pts + $161.40 | 98,000 pts + $243.40 | — |
| Alaska Atmos Rewards | 27,500 pts + $25.60 | 35,000 pts + $549.00Lowest | 55,000 pts + $1,004.00Lowest | 55,000 pts + $25.60Lowest |
| American Airlines AAdvantage | 21,000 pts + $5.60 | 40,000 pts + $533.50 | 57,500 pts + $733.50 | 85,000 pts + $1,638.00Mixed cabin |
| Avianca LifeMiles | 40,000 pts + $26.70 | — | — | — |
| Delta SkyMiles | 25,000 pts + $5.60 | 75,000 pts + $5.60 | 125,000 pts + $5.60Mixed cabin | 125,000 pts + $5.60 |
| Etihad Guest | 51,000 pts + $38.00 | — | 99,999 pts + $38.00 | — |
| GOL Smiles | 11,700 pts + taxes not reported | 551,200 pts + taxes not reported | — | — |
| JetBlue TrueBlue | 24,000 pts + $160.00 | — | 136,100 pts + $160.00 | — |
| Lufthansa Miles & More | 10,760 pts + $336.80Lowest | — | 96,812 pts + $1,498.70 | — |
| Qantas Frequent Flyer | 29,000 pts + $349.00 | 64,400 pts + $1,629.00 | 82,100 pts + $1,504.00 | — |
| United MileagePlus | 39,300 pts + $5.60 | 50,000 pts + $5.60 | 88,000 pts + $22.50Mixed cabin | — |
| Virgin Atlantic Flying Club | 20,000 pts + $319.00 | — | — | — |
| Virgin Australia Velocity | 30,000 pts + $9.46 | — | — | — |
Questions about Flying Blue award flights from St. Louis (STL) to London Heathrow (LHR)
How many miles do you need to fly from St. Louis (STL) to London Heathrow (LHR) with Air France/KLM Flying Blue?
The lowest one-way Air France/KLM Flying Blue awards AwardTool observed in the last 30 days: economy 30,000 miles + $38.00, with a typical monthly low of 33,000 miles over 9 months and award space on 64 departure dates (newest observation Oct 19, 2026); premium economy 57,730 miles + $161.40, with a typical monthly low of 63,410 miles over 4 months and award space on 14 departure dates (newest observation Oct 18, 2026); business class 98,000 miles + $243.40, with a typical monthly low of 99,000 miles over 6 months and award space on 26 departure dates (newest observation Oct 19, 2026). Monthly lows varied in economy (30,000 to 34,500 miles), premium economy (57,730 to 64,320 miles) and business class (98,000 to 99,500 miles), so the award on your dates may cost more. Search live before transferring points.
What's the lowest Flying Blue award from St. Louis (STL) to London Heathrow (LHR)?
In economy, 30,000 miles + $38.00. Seen Oct 3, 2026, 15:39 UTC for a Nov 16, 2026 departure. Air France/KLM Flying Blue showed economy award space on 64 departure dates at any price (newest observation Oct 19, 2026, 21:46 UTC). In business class, 98,000 miles + $243.40. Air France/KLM Flying Blue showed business-class award space on 26 departure dates at any price (newest observation Oct 19, 2026, 04:55 UTC). Search live before transferring points.
Can you book nonstop awards from St. Louis (STL) to London Heathrow (LHR) with Flying Blue?
AwardTool hasn't observed nonstop Air France/KLM Flying Blue award space on this route in the last 30 days. That doesn't mean nonstop space never appears.
Which credit card points can book Flying Blue awards from St. Louis (STL) to London Heathrow (LHR)?
American Express Membership Rewards (1:1, Instant), Bilt Rewards (1:1, Instant), Capital One Miles (1:1, Instant), Chase Ultimate Rewards (1:1, Instant), Citi ThankYou Points (1:1, Instant) and Wells Fargo Rewards (1:1, Instant). Check current transfer bonuses; most transfers can't be reversed.
Which months had the lowest Flying Blue award prices from St. Louis (STL) to London Heathrow (LHR)?
Counting only month prices from programs with award space on 2 or more dates that month, and leaving out unusually low outliers, the lowest economy award AwardTool observed was for Jan 2027 departures: 30,000 miles (17 dates). The month table shows every lowest price, including those. Based on dates we observed, not a forecast.