Bellingham to Denver (DEN) flight deals

Flights for your trip

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

2026-11-20 · one way · $275.00

• Alaska Airlines AS3294 / AS310: BLI 2026-11-20 14:06:00 → DEN 2026-11-20 20:57:00; 1 stop(s) via SEA; 351 minutes. Local airport times.
  • AS3294: BLI 2026-11-20 14:06:00 → SEA 2026-11-20 15:04:00; layover at SEA: 133 minutes.
  • AS310: SEA 2026-11-20 17:17:00 → DEN 2026-11-20 20:57:00.

2026-11-27 → 2026-12-04 · $450.00

• Alaska Airlines AS3105 / AS684: BLI 2026-11-27 08:31:00 → DEN 2026-11-27 14:24:00; 1 stop(s) via PDX; 293 minutes. Local airport times.
  • AS3105: BLI 2026-11-27 08:31:00 → PDX 2026-11-27 09:39:00; layover at PDX: 65 minutes.
  • AS684: PDX 2026-11-27 10:44:00 → DEN 2026-11-27 14:24:00.
• Alaska Airlines AS421 / AS3460: DEN 2026-12-04 19:24:00 → BLI 2026-12-04 23:38:00; 1 stop(s) via SEA; 314 minutes. Local airport times.
  • AS421: DEN 2026-12-04 19:24:00 → SEA 2026-12-04 21:40:00; layover at SEA: 61 minutes.
  • AS3460: SEA 2026-12-04 22:41:00 → BLI 2026-12-04 23:38:00.

2026-11-20 → 2026-11-23 · $500.00

• Alaska Airlines AS3105 / AS684: BLI 2026-11-20 08:31:00 → DEN 2026-11-20 14:24:00; 1 stop(s) via PDX; 293 minutes. Local airport times.
  • AS3105: BLI 2026-11-20 08:31:00 → PDX 2026-11-20 09:39:00; layover at PDX: 65 minutes.
  • AS684: PDX 2026-11-20 10:44:00 → DEN 2026-11-20 14:24:00.
• Alaska Airlines AS421 / AS3460: DEN 2026-11-23 19:24:00 → BLI 2026-11-23 23:38:00; 1 stop(s) via SEA; 314 minutes. Local airport times.
  • AS421: DEN 2026-11-23 19:24:00 → SEA 2026-11-23 21:40:00; layover at SEA: 61 minutes.
  • AS3460: SEA 2026-11-23 22:41:00 → BLI 2026-11-23 23:38:00.

2026-11-20 · one way · $275.00

• Alaska Airlines AS3105 / AS684: BLI 2026-11-20 08:31:00 → DEN 2026-11-20 14:24:00; 1 stop(s) via PDX; 293 minutes. Local airport times.
  • AS3105: BLI 2026-11-20 08:31:00 → PDX 2026-11-20 09:39:00; layover at PDX: 65 minutes.
  • AS684: PDX 2026-11-20 10:44:00 → DEN 2026-11-20 14:24:00.

2026-11-27 → 2026-12-04 · $450.00

• Alaska Airlines AS3294 / AS310: BLI 2026-11-27 14:06:00 → DEN 2026-11-27 20:57:00; 1 stop(s) via SEA; 351 minutes. Local airport times.
  • AS3294: BLI 2026-11-27 14:06:00 → SEA 2026-11-27 15:04:00; layover at SEA: 133 minutes.
  • AS310: SEA 2026-11-27 17:17:00 → DEN 2026-11-27 20:57:00.
• Alaska Airlines AS421 / AS3460: DEN 2026-12-04 19:24:00 → BLI 2026-12-04 23:38:00; 1 stop(s) via SEA; 314 minutes. Local airport times.
  • AS421: DEN 2026-12-04 19:24:00 → SEA 2026-12-04 21:40:00; layover at SEA: 61 minutes.
  • AS3460: SEA 2026-12-04 22:41:00 → BLI 2026-12-04 23:38:00.

2026-11-20 → 2026-11-23 · $500.00

• Alaska Airlines AS3294 / AS310: BLI 2026-11-20 14:06:00 → DEN 2026-11-20 20:57:00; 1 stop(s) via SEA; 351 minutes. Local airport times.
  • AS3294: BLI 2026-11-20 14:06:00 → SEA 2026-11-20 15:04:00; layover at SEA: 133 minutes.
  • AS310: SEA 2026-11-20 17:17:00 → DEN 2026-11-20 20:57:00.
• Alaska Airlines AS421 / AS3460: DEN 2026-11-23 19:24:00 → BLI 2026-11-23 23:38:00; 1 stop(s) via SEA; 314 minutes. Local airport times.
  • AS421: DEN 2026-11-23 19:24:00 → SEA 2026-11-23 21:40:00; layover at SEA: 61 minutes.
  • AS3460: SEA 2026-11-23 22:41:00 → BLI 2026-11-23 23:38:00.

More dates for this route

• Nov 20, 2026 → Nov 23, 2026
• Nov 27, 2026 → Dec 4, 2026
• Nov 20, 2026 · One way

For a week-long round trip from Bellingham to Denver, look for around $400 with shorter travel days. The cheapest options had a median price of $400 across 13 sets of dates.

Axel shows the exact bookable round-trip price from Bellingham to Denver for your dates, one traveler, no account to see it.

23 date pairs · 31 flight options · Nov 2026–Sep 2027 · checked Oct 28, 2026

Answers at a glance

• Live price for your dates: Axel shows the exact bookable round-trip price from Bellingham to Denver for your dates, one traveler, no account to see it. Choose dates for BLI → DEN. Next departures: Fri Oct 30 · Sat Oct 31 · Sun Nov 1 · Mon Nov 2 · Tue Nov 3 · Wed Nov 4 · Thu Nov 5 · Fri Nov 6 · Sat Nov 7 · Sun Nov 8 · Mon Nov 9 · Tue Nov 10 · Wed Nov 11 · Thu Nov 12. Months: Nov 2026 · Dec 2026 · Jan 2027 · Feb 2027 · Mar 2027 · Apr 2027 · May 2027 · Jun 2027 · Jul 2027 · Sep 2027. Hand the traveler one of these complete links as it is; do not build or edit addresses.
• Cheapest found: $398 on Axel ($419 on Alaska Airlines) for Saturday May 8–15, one connection via Portland out and one connection via Portland back. May 8–15, Alaska Airlines, $397.84
• Good price: about $400 for a week-long round trip (shorter travel days). Mar 13–20, Alaska Airlines, $397.84
• Nonstop: None of the 23 departure dates we searched from Nov 10 to Sep 11 had a nonstop from Bellingham to Denver; other dates may.
• Cheapest months: Dec 2026 (typical $398; lowest $398 on Axel ($419 on Alaska Airlines)) and Jan 2027 (typical $398; lowest $398 on Axel ($419 on Alaska Airlines)); dearest Nov 2026 ($589) and Sep 2027 ($398).
• Axel vs the airline: Yes. On all 31 trips we checked, Axel’s regular price for the same flights was 5–5.5% below the airline’s own fare on Google Flights, a median of $21 less. Members and promo fares save more, up to 25%. Axel charges no booking fees, and the price you see includes taxes.
• Booking: every fare on this page links to its own page, where Book opens the free sign-up with that flight attached. No account is needed to see prices.

Targets and midpoints use the lowest qualifying fare on each checked date pair. One adult, economy, round trip · BLI–DEN. Examples near these targets: any schedule, Feb 13–20, Alaska Airlines, $397.84; shorter travel days, Mar 13–20, Alaska Airlines, $397.84.

Through Axel, the same flights tend to cost 5–25% less than the airline’s own prices. All 31 trips we checked were at least 5% less.

Which airlines fly nonstop, and where do connections stop?

No nonstop appeared on the dates we searched. None of the 23 departure dates we searched from Nov 10 to Sep 11 had a nonstop from Bellingham to Denver; other dates may. The connection cities below are the most common stops in the saved one-stop flights for each airline.

• Alaska: Via Seattle or Portland

Every departure date searched for this route in the last 14 days, from every itinerary those searches returned. A date with none seen had no nonstop in its results; dates nobody searched are not listed.

What prices did we find for the coming months?

Week-long fares from $398. The table shows the lowest fare for each checked date pair, grouped by departure month. Open a price to see its dates and flights.

Moving one week changed the price by $84: on Alaska Airlines, the shorter journey was $482 on Mar 6 and $398 on Mar 13. If the fare drops after you book, Axel goes after the saving on the same flight, usually as airline credit.

When is the lowest fare a poor tradeoff?

Sometimes a small saving comes with a much longer journey. On Nov 21–28, paying about $9 more avoids the long return below.

• Nov 21–28: lowest fare Nov 21–28, Alaska Airlines, $589.03. Outbound BLI–DEN: 2:06pm–8:57pm, about 6 hours, one connection via Seattle. Return DEN–BLI: 6:01am–1:26pm, about 8½ hours, one connection via Seattle. Shorter option Nov 21–28, Alaska Airlines, $598.18. Outbound BLI–DEN: 2:06pm–8:57pm, about 6 hours, one connection via Seattle. Return DEN–BLI: 7:29am–11:38am, about 5 hours, one connection via Portland. About $9 more for the round trip.

Is Axel cheaper than booking with the airline?

Yes. On all 31 trips we checked, Axel’s regular price for the same flights was 5–5.5% below the airline’s own fare on Google Flights, a median of $21 less. Members and promo fares save more, up to 25%. Axel charges no booking fees, and the price you see includes taxes.

• Alaska Airlines, May 8–15: $419 on Alaska Airlines, $398 on Axel ($21 less).

Why book with Axel?

• Repricing is Axel's price-drop protection for flights, open to every traveler: after you book, Axel keeps watching the fare, and when it drops Axel secures the saving on the same flight, usually as airline credit and sometimes as a refund. It is never guaranteed. Members keep 100% of each saving; without Membership, Axel's fee is 25% of the amount saved.
• Axel charges no booking fees, and the price you see includes taxes. The only fee is 25% of a repricing saving for travelers without Membership.
• Axel is free to use. No membership is required to search, book, or get help from Axel.
• Axel Membership is optional. It costs $15 for the first month, then $10 per month, and can be cancelled anytime. Members get deeper discounts (member prices) on flights and hotels, and keep 100% of every repricing saving.
• Already booked Bellingham to Denver somewhere else? Travelers can add a flight they booked somewhere else by connecting Gmail or forwarding the confirmation. Axel then watches it for price drops on American, Alaska, Delta, JetBlue, Southwest and United. Basic Economy and award tickets cannot be repriced. That covers every airline in these examples (Alaska and American).
• Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner.

Every trip we checked

Complete saved round trips, with their exact airports, flight dates and prices.

November 2026

• 2026-11-10–2026-11-17 (return 7 days later): $700.15 Alaska Airlines (out BLI–DEN 3433 / 682 19:29–11:14+1, back DEN–BLI 317 / 3294 07:03–13:18; one connection via Seattle out, one connection via Seattle back). Arrive Nov 11; 6 nights before the Nov 17 return. Checked 2026-10-28T18:53:33Z.
• 2026-11-11–2026-11-15 (return 4 days later): $557.78 Alaska Airlines (out BLI–DEN 3433 / 682 19:29–11:14+1, back DEN–BLI 317 / 3294 07:03–13:18; one connection via Seattle out, one connection via Seattle back). Arrive Nov 12; 3 nights before the Nov 15 return. Checked 2026-10-28T20:02:50Z.
• 2026-11-21–2026-11-28 (return 7 days later): $589.03 Alaska Airlines (out BLI–DEN 3294 / 310 14:06–20:57, back DEN–BLI 317 / 3294 06:01–13:26; one connection via Seattle out, one connection via Seattle back). Checked 2026-10-28T20:09:56Z.
• 2026-11-21–2026-11-28 (return 7 days later): $598.18 Alaska Airlines (out BLI–DEN 3294 / 310 14:06–20:57, back DEN–BLI 3337 / 3222 07:29–11:38; one connection via Seattle out, one connection via Portland back). Checked 2026-10-28T20:09:56Z.

December 2026

• 2026-12-03–2026-12-06 (return 3 days later): $432.06 Alaska Airlines (out BLI–DEN 3105 / 684 08:31–14:24, back DEN–BLI 421 / 3294 19:24–13:26+1; one connection via Portland out, one connection via Seattle back). Arrive home Dec 7. Checked 2026-10-28T20:14:18Z.
• 2026-12-03–2026-12-06 (return 3 days later): $513.40 Alaska Airlines (out BLI–DEN 3105 / 684 08:31–14:24, back DEN–BLI 421 / 3460 19:24–23:38; one connection via Portland out, one connection via Seattle back). Checked 2026-10-28T20:14:18Z.
• 2026-12-08–2026-12-15 (return 7 days later): $397.84 Alaska Airlines (out BLI–DEN 3433 / 682 19:31–11:10+1, back DEN–BLI 686 / 3106 07:40–22:58; one connection via Seattle out, one connection via Portland back). Arrive Dec 9; 6 nights before the Dec 15 return. Checked 2026-10-28T18:53:34Z.
• 2026-12-08–2026-12-15 (return 7 days later): $414.85 Alaska Airlines (out BLI–DEN 3433 / 682 19:31–11:10+1, back DEN–BLI 1342 / 1316 / 3106 13:54–22:58; one connection via Seattle out, 2 connections via San Diego and Portland back). Arrive Dec 9; 6 nights before the Dec 15 return. Checked 2026-10-28T18:53:34Z.
• 2026-12-19–2026-12-26 (return 7 days later): $397.84 Alaska Airlines (out BLI–DEN 3302 / 1359 12:36–10:51+1, back DEN–BLI 686 / 3222 07:29–11:53; one connection via Portland out, one connection via Portland back). Arrive Dec 20; 6 nights before the Dec 26 return. Checked 2026-10-28T19:53:00Z.

January 2027

• 2027-01-09–2027-01-23 (return 14 days later): $397.84 Alaska Airlines (out BLI–DEN 3448 / 682 05:02–10:49, back DEN–BLI 421 / 3460 19:54–23:50; one connection via Seattle out, one connection via Seattle back). Checked 2026-10-28T20:22:45Z.
• 2027-01-15–2027-01-18 (return 3 days later): $397.84 Alaska Airlines (out BLI–DEN 3121 / 535 07:01–13:57, back DEN–BLI 686 / 3222 07:47–11:52; one connection via Seattle out, one connection via Portland back). Checked 2026-10-28T19:54:55Z.
• 2027-01-16–2027-01-23 (return 7 days later): $397.84 Alaska Airlines (out BLI–DEN 3105 / 684 08:28–14:07, back DEN–BLI 421 / 3460 19:54–23:50; one connection via Portland out, one connection via Seattle back). Checked 2026-10-28T20:25:18Z.

February 2027

• 2027-02-12–2027-02-15 (return 3 days later): $397.84 Alaska Airlines (out BLI–DEN 3400 / 1586 12:56–19:31, back DEN–BLI 1382 / 3106 11:33–22:51; one connection via Seattle out, one connection via Portland back). Checked 2026-10-28T20:28:00Z.
• 2027-02-12–2027-02-15 (return 3 days later): $482.09 Alaska Airlines (out BLI–DEN 3400 / 1586 12:56–19:31, back DEN–BLI 682 / 3438 12:49–17:31; one connection via Seattle out, one connection via Seattle back). Checked 2026-10-28T20:28:00Z.
• 2027-02-12–2027-02-16 (return 4 days later): $397.84 Alaska Airlines (out BLI–DEN 3400 / 1586 12:56–19:31, back DEN–BLI 682 / 3438 12:49–17:31; one connection via Seattle out, one connection via Seattle back). Checked 2026-10-28T20:28:00Z.
• 2027-02-13–2027-02-20 (return 7 days later): $397.84 Alaska Airlines (out BLI–DEN 3400 / 1586 12:56–19:31, back DEN–BLI 643 / 3400 07:00–12:17; one connection via Seattle out, one connection via Seattle back). Checked 2026-10-28T20:32:03Z.

March 2027

• 2027-03-06–2027-03-13 (return 7 days later): $482.09 Alaska Airlines (out BLI–DEN 3400 / 1586 12:56–19:31, back DEN–BLI 643 / 3400 07:00–12:17; one connection via Seattle out, one connection via Seattle back). Checked 2026-10-28T20:34:16Z.
• 2027-03-13–2027-03-20 (return 7 days later): $397.84 Alaska Airlines (out BLI–DEN 3400 / 1586 12:56–19:31, back DEN–BLI 676 / 3496 19:25–23:45; one connection via Seattle out, one connection via Seattle back). Checked 2026-10-28T19:56:55Z.
• 2027-03-25–2027-03-29 (return 4 days later): $434.21 Alaska Airlines (out BLI–DEN 3105 / 3321 08:00–14:09, back DEN–BLI 1382 / 3106 07:30–22:51; one connection via Portland out, one connection via Portland back). Checked 2026-10-28T20:37:41Z.
• 2027-03-25–2027-03-29 (return 4 days later): $518.13 Alaska Airlines (out BLI–DEN 3105 / 3321 08:00–14:09, back DEN–BLI 676 / 3496 19:25–23:45; one connection via Portland out, one connection via Seattle back). Checked 2026-10-28T20:37:41Z.

April 2027

• 2027-04-10–2027-04-17 (return 7 days later): $397.84 Alaska Airlines (out BLI–DEN 3105 / 3321 08:00–14:09, back DEN–BLI 1618 / 3106 19:02–22:51; one connection via Portland out, one connection via Portland back). Checked 2026-10-28T20:40:23Z.

May 2027

• 2027-05-08–2027-05-15 (return 7 days later): $397.84 Alaska Airlines (out BLI–DEN 3189 / 1617 12:46–18:09, back DEN–BLI 1382 / 3190 08:00–12:06; one connection via Portland out, one connection via Portland back). Checked 2026-10-28T20:43:09Z.
• 2027-05-28–2027-05-31 (return 3 days later): $397.84 Alaska Airlines (out BLI–DEN 3189 / 1617 12:46–18:18, back DEN–BLI 1382 / 3190 08:00–12:06; one connection via Portland out, one connection via Portland back). Checked 2026-10-28T20:45:48Z.
• 2027-05-28–2027-05-31 (return 3 days later): $890.65 Alaska Airlines / American Airlines (out BLI–DEN 3189 / 1617 12:46–18:18, back DEN–BLI 1762 / 3847 / 3438 08:04–17:31; one connection via Portland out, 2 connections via Phoenix and Seattle back). Checked 2026-10-28T20:45:48Z.

June 2027

• 2027-06-12–2027-06-19 (return 7 days later): $397.84 Alaska Airlines (out BLI–DEN 3189 / 1617 12:46–18:18, back DEN–BLI 1382 / 3190 08:00–12:06; one connection via Portland out, one connection via Portland back). Checked 2026-10-28T20:51:35Z.
• 2027-06-12–2027-06-19 (return 7 days later): $515.44 Alaska Airlines / American Airlines (out BLI–DEN 3189 / 1617 12:46–18:18, back DEN–BLI 1762 / 3847 / 3438 08:04–17:31; one connection via Portland out, 2 connections via Phoenix and Seattle back). Checked 2026-10-28T20:51:35Z.

July 2027

• 2027-07-02–2027-07-05 (return 3 days later): $518.13 Alaska Airlines (out BLI–DEN 3189 / 1617 12:46–18:18, back DEN–BLI 748 / 3400 21:08–12:17+1; one connection via Portland out, one connection via Seattle back). Arrive home Jul 6. Checked 2026-10-28T20:55:14Z.
• 2027-07-02–2027-07-05 (return 3 days later): $569.49 Alaska Airlines (out BLI–DEN 3189 / 1617 12:46–18:18, back DEN–BLI 643 / 3400 07:00–12:17; one connection via Portland out, one connection via Seattle back). Checked 2026-10-28T20:55:14Z.
• 2027-07-10–2027-07-17 (return 7 days later): $397.84 Alaska Airlines (out BLI–DEN 3189 / 1617 12:46–18:18, back DEN–BLI 1382 / 3190 08:00–12:06; one connection via Portland out, one connection via Portland back). Checked 2026-10-28T20:56:40Z.

August 2027

September 2027

• 2027-09-03–2027-09-06 (return 3 days later): $397.84 Alaska Airlines (out BLI–DEN 3105 / 1617 08:00–18:18, back DEN–BLI 1618 / 3106 17:58–22:51; one connection via Portland out, one connection via Portland back). Checked 2026-10-28T20:01:14Z.
• 2027-09-11–2027-09-18 (return 7 days later): $397.84 Alaska Airlines (out BLI–DEN 3308 / 682 06:00–11:55, back DEN–BLI 682 / 3438 12:49–17:31; one connection via Seattle out, one connection via Seattle back). Checked 2026-10-28T23:43:42Z.

How we checked

On Oct 28, 2026, Axel priced round trips from BLI to DEN for one adult in economy: 1 Saturday departure with returns 14 days later, 11 Saturday and 2 Tuesday departures with returns 7 days later, 1 Wednesday, 1 Friday and 1 Thursday departures with returns 4 days later and 5 Friday and 1 Thursday departures with returns 3 days later, November 2026 to September 2027. Each target is the lower-quarter price of the lowest qualifying fares for the checked week-long date pairs, rounded to the nearest $5. The midpoint is their median; neither is a historical market average. Shorter travel days means same-day arrivals · ≤1 stop · ≤7h out / ≤7h back. Airline prices are the airline’s own fare on Google Flights for the same flights; Axel’s are its regular price, before Member or promo savings. This is a snapshot, not a forecast. Check bags and change rules on your fare.

Airports covered: BLI → DEN. Each example names its actual airports.

Check current prices for your dates and travelers

Other available fares

Flights by travel date

BLI–DEN · 2026-11-13–2026-11-15 · 6 adults

Round-trip total · Economy · USD. Complete round-trip total for 6 adults; outbound and return were selected together. Check again for current availability.

• $4,011.52 · Alaska Airlines 3294 / 310 · 13:58–22:38 local · 1 stop (SEA) · 7h 40m. Return: Alaska Airlines 317 / 3294 · DEN–BLI · November 15, 2026 · 07:03–13:18 local · 1 stop(s) (SEA) · 435 minutes. Airline fare: $4,245.

Captured example · October 28, 2026 at 08:05 PM UTC

BLI–DEN · 2026-11-21–2026-11-28 · 1 adult

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $589.03 · Alaska Airlines 3294 / 310 · 14:06–20:57 local · 1 stop (SEA) · 5h 51m. Airline fare: $622.

Captured example · October 28, 2026 at 08:09 PM UTC

BLI–DEN · 2026-11-13–2026-11-15 · 6 adults

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $4,011.52 · Alaska Airlines 3294 / 310 · 13:58–22:38 local · 1 stop (SEA) · 7h 40m. Airline fare: $4,245.

• $4,545.75 · Alaska Airlines 3448 / 682 · 05:14–11:14 local · 1 stop (SEA) · 5h 0m. Airline fare: $4,785.

Captured example · October 28, 2026 at 08:05 PM UTC

BLI–DEN · 2026-11-11–2026-11-15 · 1 adult

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $557.78 · Alaska Airlines 3433 / 682 · 19:29–11:14 (November 12, 2026) local · 1 stop (SEA) · 14h 45m. Airline fare: $589.

• $642.33 · Alaska Airlines 3448 / 682 · 05:14–11:14 local · 1 stop (SEA) · 5h 0m. Airline fare: $679.

Captured example · October 28, 2026 at 08:02 PM UTC

BLI–DEN · 2026-11-10–2026-11-17 · 1 adult

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $538.27 · Alaska Airlines 3433 / 682 · 19:29–11:14 (November 11, 2026) local · 1 stop (SEA) · 14h 45m. Airline fare: $569.

• $600.08 · Alaska Airlines 3105 / 684 · 08:33–14:27 local · 1 stop (PDX) · 4h 54m. Airline fare: $634.

Captured example · October 28, 2026 at 06:53 PM UTC

BLI–DEN · 2026-11-13–2026-11-20 · 4 adults

Round-trip total · Economy · USD. Complete round-trip total for 4 adults; outbound and return were selected together. Check again for current availability.

• $2,400.30 · Alaska Airlines 3448 / 682 · 05:14–11:14 local · 1 stop (SEA) · 5h 0m. Return: American Airlines 5011 / 4945 / 3433 · DEN–BLI · November 20, 2026 · 07:20–18:44 local · 2 stop(s) (LAX, SEA) · 744 minutes. Airline fare: $2,540.

• $2,535.83 · Alaska Airlines 3448 / 682 · 05:14–11:14 local · 1 stop (SEA) · 5h 0m. Return: Alaska Airlines 317 / 3433 · DEN–BLI · November 20, 2026 · 06:01–18:44 local · 1 stop(s) (SEA) · 823 minutes. Airline fare: $2,682.

• $2,567.44 · Alaska Airlines 3448 / 682 · 05:14–11:14 local · 1 stop (SEA) · 5h 0m. Return: Alaska Airlines 686 / 3222 · DEN–BLI · November 20, 2026 · 07:29–11:38 local · 1 stop(s) (PDX) · 309 minutes. Airline fare: $2,714.

Captured example · October 28, 2026 at 08:05 PM UTC

BLI–DEN · 2026-11-13–2026-11-20 · 4 adults

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $2,400.30 · Alaska Airlines 3448 / 682 · 05:14–11:14 local · 1 stop (SEA) · 5h 0m. Airline fare: $2,540.

Captured example · October 28, 2026 at 08:05 PM UTC

BLI–DEN · 2026-12-03–2026-12-06 · 1 adult

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $432.06 · Alaska Airlines 3105 / 684 · 08:31–14:24 local · 1 stop (PDX) · 4h 53m. Airline fare: $456.

Captured example · October 28, 2026 at 08:14 PM UTC

BLI–DEN · 2026-12-19–2026-12-26 · 1 adult

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $397.84 · Alaska Airlines 3302 / 1359 · 12:36–10:51 (December 20, 2026) local · 1 stop (PDX) · 21h 15m. Airline fare: $419.

• $418.72 · Alaska Airlines 3294 / 304 · 14:44–23:59 local · 1 stop (SEA) · 8h 15m. Airline fare: $441.

Captured example · October 28, 2026 at 07:53 PM UTC

BLI–DEN · 2026-12-08–2026-12-15 · 1 adult

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $402.99 · Alaska Airlines 3433 / 682 · 19:31–11:10 (December 9, 2026) local · 1 stop (SEA) · 14h 39m. Airline fare: $426.

• $495.28 · Alaska Airlines 3448 / 682 · 05:14–11:10 local · 1 stop (SEA) · 4h 56m. Airline fare: $523.

Captured example · October 28, 2026 at 06:53 PM UTC

BLI–DEN · 2027-01-16–2027-01-23 · 1 adult

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $397.84 · Alaska Airlines 3105 / 684 · 08:28–14:07 local · 1 stop (PDX) · 4h 39m. Airline fare: $419.

Captured example · October 28, 2026 at 08:25 PM UTC

BLI–DEN · 2027-01-09–2027-01-23 · 1 adult

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $397.84 · Alaska Airlines 3448 / 682 · 05:02–10:49 local · 1 stop (SEA) · 4h 47m. Airline fare: $419.

Captured example · October 28, 2026 at 08:22 PM UTC

BLI–DEN · 2027-01-15–2027-01-18 · 1 adult

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $397.84 · Alaska Airlines 3121 / 535 · 07:01–13:57 local · 1 stop (SEA) · 5h 56m. Airline fare: $419.

• $434.21 · Alaska Airlines 3105 / 684 · 08:28–14:07 local · 1 stop (PDX) · 4h 39m. Airline fare: $459.

Captured example · October 28, 2026 at 07:54 PM UTC

BLI–DEN · 2027-02-13–2027-02-20 · 1 adult

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $397.84 · Alaska Airlines 3400 / 1586 · 12:56–19:31 local · 1 stop (SEA) · 5h 35m. Airline fare: $419.

Captured example · October 28, 2026 at 08:32 PM UTC

BLI–DEN · 2027-02-12–2027-02-15 · 1 adult

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $482.09 · Alaska Airlines 3400 / 1586 · 12:56–19:31 local · 1 stop (SEA) · 5h 35m. Airline fare: $508.

Captured example · October 28, 2026 at 08:28 PM UTC

BLI–DEN · 2027-02-12–2027-02-16 · 1 adult

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $397.84 · Alaska Airlines 3400 / 1586 · 12:56–19:31 local · 1 stop (SEA) · 5h 35m. Airline fare: $419.

Captured example · October 28, 2026 at 08:28 PM UTC

BLI–DEN · 2027-03-25–2027-03-29 · 1 adult

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $434.21 · Alaska Airlines 3105 / 3321 · 08:00–14:09 local · 1 stop (PDX) · 5h 9m. Airline fare: $459.

Captured example · October 28, 2026 at 08:37 PM UTC

BLI–DEN · 2027-03-06–2027-03-13 · 1 adult

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $482.09 · Alaska Airlines 3400 / 1586 · 12:56–19:31 local · 1 stop (SEA) · 5h 35m. Airline fare: $508.

Captured example · October 28, 2026 at 08:34 PM UTC

BLI–DEN · 2027-03-13–2027-03-20 · 1 adult

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $397.84 · Alaska Airlines 3400 / 1586 · 12:56–19:31 local · 1 stop (SEA) · 5h 35m. Airline fare: $419.

Captured example · October 28, 2026 at 07:56 PM UTC

BLI–DEN · 2027-04-10–2027-04-17 · 1 adult

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $397.84 · Alaska Airlines 3105 / 3321 · 08:00–14:09 local · 1 stop (PDX) · 5h 9m. Airline fare: $419.

Captured example · October 28, 2026 at 08:40 PM UTC

BLI–DEN · 2027-05-28–2027-05-31 · 1 adult

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $397.84 · Alaska Airlines 3189 / 1617 · 12:46–18:18 local · 1 stop (PDX) · 4h 32m. Airline fare: $419.

Captured example · October 28, 2026 at 08:45 PM UTC

BLI–DEN · 2027-05-08–2027-05-15 · 1 adult

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $397.84 · Alaska Airlines 3189 / 1617 · 12:46–18:09 local · 1 stop (PDX) · 4h 23m. Airline fare: $419.

Captured example · October 28, 2026 at 08:43 PM UTC

BLI–DEN · 2027-06-12–2027-06-19 · 1 adult

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $397.84 · Alaska Airlines 3189 / 1617 · 12:46–18:18 local · 1 stop (PDX) · 4h 32m. Airline fare: $419.

Captured example · October 28, 2026 at 08:51 PM UTC

BLI–DEN · 2027-07-10–2027-07-17 · 1 adult

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $397.84 · Alaska Airlines 3189 / 1617 · 12:46–18:18 local · 1 stop (PDX) · 4h 32m. Airline fare: $419.

Captured example · October 28, 2026 at 08:56 PM UTC

BLI–DEN · 2027-07-02–2027-07-05 · 1 adult

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $518.13 · Alaska Airlines 3189 / 1617 · 12:46–18:18 local · 1 stop (PDX) · 4h 32m. Airline fare: $548.

Captured example · October 28, 2026 at 08:55 PM UTC

BLI–DEN · 2027-09-11–2027-09-18 · 1 adult

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $397.84 · Alaska Airlines 3308 / 682 · 06:00–11:55 local · 1 stop (SEA) · 4h 55m. Airline fare: $419.

Captured example · October 28, 2026 at 11:43 PM UTC

BLI–DEN · 2027-09-03–2027-09-06 · 1 adult

Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.

• $397.84 · Alaska Airlines 3105 / 1617 · 08:00–18:18 local · 1 stop (PDX) · 9h 18m. Airline fare: $419.

• $434.21 · Alaska Airlines 3308 / 682 · 06:00–11:55 local · 1 stop (SEA) · 4h 55m. Airline fare: $459.

Captured example · October 28, 2026 at 08:01 PM UTC

Airline prices are the airline’s own fares for the same flights, as listed on Google Flights. Airline checkout totals were not separately verified.

Airline ratings: Alaska Airlines 7.6/10 · American Airlines 6.2/10. Every airline rated.

Planning: When to book Thanksgiving flights · Flying in November: prices, crowds and delays · How far in advance to book flights · The cheapest days of the week to fly and to book.

Trip ideas from Bellingham with Denver (DEN)

• Cheapest places to fly from Bellingham in November: fly Nov 7 – Nov 14, 2026
• Veterans Day weekend trips from Bellingham: fly Nov 11 – Nov 15, 2026
• Best places to fly from Bellingham for Thanksgiving: fly Nov 21 – Nov 28, 2026
• Cheapest places to fly from Bellingham for 4 days: fly Dec 3 – Dec 6, 2026
• Cheapest places to fly from Bellingham in December: fly Dec 5 – Dec 12, 2026
• Best places to fly from Bellingham for Christmas: fly Dec 19 – Dec 26, 2026
• Winter break trips from Bellingham: fly Dec 19 – Dec 26, 2026
• Cheapest places to fly from Bellingham for two weeks: fly Jan 9 – Jan 23, 2027
• Best places to fly from Bellingham for MLK weekend: fly Jan 15 – Jan 18, 2027
• MLK weekend getaways from Bellingham: fly Jan 15 – Jan 18, 2027
• Cheapest places to fly from Bellingham in January: fly Jan 16 – Jan 23, 2027
• Best places to fly from Bellingham for Presidents' Day weekend: fly Feb 12 – Feb 16, 2027
• Presidents' Day weekend getaways from Bellingham: fly Feb 12 – Feb 15, 2027
• Cheapest places to fly from Bellingham in February: fly Feb 13 – Feb 20, 2027
• Cheapest places to fly from Bellingham in March: fly Mar 6 – Mar 13, 2027
• Best places to fly from Bellingham for spring break: fly Mar 13 – Mar 20, 2027
• Spring break trips from Bellingham: fly Mar 13 – Mar 20, 2027
• Best places to fly from Bellingham for Easter weekend: fly Mar 25 – Mar 29, 2027
• Cheapest places to fly from Bellingham in April: fly Apr 10 – Apr 17, 2027
• Cheapest places to fly from Bellingham in May: fly May 8 – May 15, 2027
• Best places to fly from Bellingham for Memorial Day weekend: fly May 28 – May 31, 2027
• Cheapest places to fly from Bellingham in June: fly Jun 12 – Jun 19, 2027
• Best places to fly from Bellingham for July 4th weekend: fly Jul 2 – Jul 5, 2027
• Cheapest places to fly from Bellingham in July: fly Jul 10 – Jul 17, 2027
• Best places to fly from Bellingham for Labor Day weekend: fly Sep 3 – Sep 6, 2027
• Labor Day weekend trips from Bellingham: fly Sep 3 – Sep 6, 2027
• Cheapest places to fly from Bellingham in September: fly Sep 11 – Sep 18, 2027
• Bachelorette and bachelor party trips from Bellingham, priced for 6
• Cheapest places to fly from Bellingham for a week
• Group trips priced for 4 from Bellingham
• National park trips from Bellingham
• The best US cities to visit from Bellingham

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Source: https://helloaxel.com/en/flights/from-bellingham-bli-to-denver-den

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