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Denver is a major United hub, but its Europe network is smaller than those of coastal gateways. In winter, the nonstops are United and Lufthansa to Frankfurt and Munich, United and British Airways to London, Icelandair to Reykjavik, and Turkish to Istanbul. Air France's seasonal Paris flight ended on October 10, 2026, and United adds Paris on May 27, 2027. Star Alliance has most of the nonstops, so Aeroplan is the main program for Denver flyers.
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Quick answer
- Cheapest economy route: Icelandair via Reykjavik (a cash fare, or Atmos points on partner seats), or United to Frankfurt or Munich on a low MileagePlus date.
- Best business-class value: United or Lufthansa DEN–Frankfurt or Munich on Aeroplan for 75,000 points one-way, with no fuel surcharges.
- Best program to collect: Aeroplan, which books four of DEN's five winter Europe routes and is fed by Amex, Chase, Capital One and Bilt.
- Best card: Chase Sapphire Reserve, which transfers 1:1 to both United and Aeroplan, the two programs that matter most at DEN.
Nonstop flights from DEN
Winter 2026–27, from the October 2026 airline lists. Seasonal summer-only routes are noted under the table.
| Route | Airline | Alliance | Book with |
|---|---|---|---|
| DEN–London (LHR) | United, British Airways | Star / oneworld | Aeroplan, United, AAdvantage |
| DEN–Frankfurt (FRA) | United, Lufthansa | Star | Aeroplan, LifeMiles, United |
| DEN–Munich (MUC) | United, Lufthansa | Star | Aeroplan, LifeMiles, United |
| DEN–Reykjavik (KEF) | Icelandair | none | Atmos (partner), cash |
| DEN–Istanbul (IST) | Turkish | Star | Aeroplan, Miles&Smiles |
Seasonal: United flies DEN–Rome in summer. Air France's DEN–Paris flight is seasonal and ended for the year on October 10, 2026. New: United DEN–Paris starts May 27, 2027.
Best ways to book
Air Canada Aeroplan
Aeroplan prices by distance and adds no fuel surcharges. Since June 1, 2026, business costs 60,000 points up to 4,000 miles and 75,000 for 4,001–6,000 miles on Air Canada and select partners. Every Denver–Europe nonstop is over 4,000 miles (DEN–Frankfurt is about 5,000 and DEN–London about 4,650), so plan on 75,000 one-way in business on United, Lufthansa or Turkish. Feeds: Amex, Chase, Capital One and Bilt, all 1:1.
United MileagePlus
United prices its own flights dynamically, with no fuel surcharges. Saver-level business to Frankfurt or Munich can open well in advance or close to departure. Peak dates often cost more than Aeroplan does for the same United seat. Feeds: Chase 1:1 and Bilt 1:1.
Avianca LifeMiles
LifeMiles books Lufthansa and United with no fuel surcharges. Business to Europe costs about 70,000–92,400 miles one-way after the April 2026 devaluation. LifeMiles often sells miles at a discount, which can help if you're a few thousand short. Feeds: Amex, Capital One, Citi and Bilt. Chase doesn't transfer to LifeMiles.
Air France-KLM Flying Blue
There's no SkyTeam nonstop from Denver in winter, but Flying Blue can still book Air France or KLM with a connection. Standard business is 60,000 miles, with Promo Rewards from 45,000 (September 2026). Check whether Denver is a promo origin that month. Feeds: Amex, Chase, Capital One and Citi.
British Airways (Avios) and AAdvantage
BA flies DEN–London, but its own long-haul awards carry steep surcharges. AAdvantage prices BA at 57,500 miles in business on its partner chart (Frequent Miler, June 2026), but you still pay BA's surcharges. Treat BA as a last resort.
Sweet spots from Denver
- United Polaris on Aeroplan. 75,000 points one-way with no fuel surcharges for United's DEN–Frankfurt, Munich or London nonstops. It's often cheaper than United charges for the same seat.
- Lufthansa to Frankfurt or Munich. Book through Aeroplan or LifeMiles. Lufthansa First isn't available to partner programs right now (Lufthansa stopped releasing it on June 1, 2026), but business award space does appear.
- Icelandair via Reykjavik. A low-cost economy option with a free stopover in Iceland. Atmos Rewards members can book Icelandair as a partner.
- Turkish to Istanbul. Book with Aeroplan, or with Miles&Smiles through Capital One, Citi or Bilt. From Istanbul you can reach southern and eastern Europe.
Which card to earn with
| Card | Points | Transfers to | Best for |
|---|---|---|---|
| Chase Sapphire Reserve | Ultimate Rewards | United, Aeroplan, Flying Blue | Denver's United flyers |
| Amex Platinum | Membership Rewards | Aeroplan, LifeMiles, Flying Blue | Star awards plus the Centurion Lounge at DEN |
| Capital One Venture X | Capital One miles | Aeroplan, LifeMiles, Turkish, Flying Blue | Simple 2x earning, plus the Capital One Lounge at DEN |
| Citi Strata Elite | ThankYou | LifeMiles, Turkish, Flying Blue | Turkish and LifeMiles awards |
| United Club card | United miles | (earns United miles directly) | Frequent United flyers |
Bilt also transfers 1:1 to United, Aeroplan, LifeMiles and Turkish. See the Bilt guide.
Taxes & surcharges
- Aeroplan, United and LifeMiles: no carrier surcharges, so you pay mainly government taxes.
- British Airways via Avios: $600–$1,000+ in fees on transatlantic business. Avoid it.
- Flying Blue: about $200–300 one-way in business on Air France or KLM.
- Returning from London: the UK's departure tax is steep in premium cabins. A return from Frankfurt or Munich usually costs less in cash.
FAQ
Which European cities have nonstops from Denver in winter? London, Frankfurt, Munich, Reykjavik and Istanbul. United adds Rome in summer and Paris from May 27, 2027.
How many points for business class from Denver to Europe? About 75,000 Aeroplan points or 70,000–92,400 LifeMiles one-way, plus taxes. United's own dynamic price varies widely.
Is Aeroplan or United better for Denver flyers? Aeroplan is usually better for United business seats, because of its fixed price and lack of surcharges. United's own pricing sometimes wins on off-peak economy. With Chase points you can transfer to either, so compare before you move them.
Can I fly Air France from Denver in winter? Not nonstop. Air France's Denver–Paris flight is seasonal and ended on October 10, 2026. Connect through another hub, or wait for United's new Denver–Paris route next May.
Related guides
- How to fly to Europe with points
- DEN airport lounges
- Aeroplan business to Europe
- United MileagePlus guide
- Chicago to Europe with points
- Transfer partners: Chase, Amex, Capital One, Citi
Award prices and availability change daily. Search before you transfer points — transfers are one-way.
