Boston (BOS) to Denver (DEN) flights: who flies it

Boston to Denver flight schedule

Scheduled nonstop departures for BOS to DEN starting October 21, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Scheduled nonstop departures from Boston (BOS) to Denver (DEN)
Date	Flight	Airline	Departs BOS	Arrives DEN	Duration	Aircraft
Wed, Oct 21	UA 647	United Airlines	07:30	10:05	4h 35m	Boeing 737 MAX 9
Wed, Oct 21	DL 499	Delta Air Lines	07:40	10:18	4h 38m	Airbus A321neo family
Wed, Oct 21	B6 393	JetBlue Airways	09:10	11:42	4h 32m	Airbus A220-300
Wed, Oct 21	UA 2348	United Airlines	09:30	12:04	4h 34m	Airbus A321neo family
Wed, Oct 21	B6 993	JetBlue Airways	10:38	13:10	4h 32m	Airbus A220-300
Wed, Oct 21	UA 414	United Airlines	11:44	14:18	4h 34m	Airbus A321neo family
Wed, Oct 21	UA 2297	United Airlines	15:15	17:49	4h 34m	Airbus A321neo family
Wed, Oct 21	UA 800	United Airlines	17:08	19:45	4h 37m	Airbus A321neo family
Wed, Oct 21	UA 1932	United Airlines	20:50	23:21	4h 31m	Boeing 737 MAX 9
Thu, Oct 22	DL 499	Delta Air Lines	07:40	10:18	4h 38m	Airbus A321neo family
Thu, Oct 22	UA 647	United Airlines	07:45	10:22	4h 37m	Airbus A321neo family
Thu, Oct 22	B6 393	JetBlue Airways	09:10	11:42	4h 32m	Airbus A220-300
Thu, Oct 22	UA 2348	United Airlines	09:30	12:04	4h 34m	Airbus A321neo family
Thu, Oct 22	B6 993	JetBlue Airways	10:38	13:10	4h 32m	Airbus A220-300
Thu, Oct 22	UA 414	United Airlines	11:44	14:18	4h 34m	Airbus A321neo family
Thu, Oct 22	UA 2297	United Airlines	15:15	17:49	4h 34m	Airbus A321neo family
Thu, Oct 22	UA 800	United Airlines	17:08	19:45	4h 37m	Airbus A321neo family
Thu, Oct 22	UA 1932	United Airlines	20:50	23:21	4h 31m	Boeing 737 MAX 9
Fri, Oct 23	DL 499	Delta Air Lines	07:40	10:18	4h 38m	Airbus A321neo family
Fri, Oct 23	UA 647	United Airlines	07:45	10:22	4h 37m	Airbus A321neo family
Fri, Oct 23	B6 393	JetBlue Airways	09:10	11:42	4h 32m	Airbus A220-300
Fri, Oct 23	UA 2348	United Airlines	09:30	12:04	4h 34m	Airbus A321neo family
Fri, Oct 23	B6 993	JetBlue Airways	10:31	13:03	4h 32m	Airbus A220-300
Fri, Oct 23	UA 414	United Airlines	11:44	14:18	4h 34m	Airbus A321neo family
Fri, Oct 23	UA 2297	United Airlines	15:15	17:47	4h 32m	Boeing 737-900
Fri, Oct 23	UA 800	United Airlines	17:08	19:45	4h 37m	Airbus A321neo family
Fri, Oct 23	UA 1932	United Airlines	20:50	23:21	4h 31m	Boeing 737 MAX 9
Sat, Oct 24	DL 499	Delta Air Lines	07:40	10:18	4h 38m	Airbus A321neo family
Sat, Oct 24	UA 647	United Airlines	07:45	10:22	4h 37m	Airbus A321neo family
Sat, Oct 24	B6 393	JetBlue Airways	09:10	11:42	4h 32m	Airbus A220-300
Sat, Oct 24	UA 2348	United Airlines	09:30	12:04	4h 34m	Airbus A321neo family
Sat, Oct 24	B6 993	JetBlue Airways	10:38	13:10	4h 32m	Airbus A220-300
Sat, Oct 24	UA 414	United Airlines	11:44	14:18	4h 34m	Airbus A321neo family
Sat, Oct 24	UA 2297	United Airlines	15:15	17:49	4h 34m	Airbus A321neo family
Sun, Oct 25	UA 2814	United Airlines	07:15	10:04	4h 49m	Airbus A321neo family
Sun, Oct 25	DL 499	Delta Air Lines	07:40	10:18	4h 38m	Airbus A321neo family
Sun, Oct 25	B6 393	JetBlue Airways	08:24	11:15	4h 51m	Airbus A220-300
Sun, Oct 25	UA 2348	United Airlines	09:30	12:04	4h 34m	Airbus A321neo family
Sun, Oct 25	B6 993	JetBlue Airways	10:22	13:10	4h 48m	Airbus A220-300
Sun, Oct 25	UA 414	United Airlines	11:44	14:18	4h 34m	Airbus A321neo family

Showing the first 40 of 59 scheduled BOS to DEN departures across 7 days with service, starting October 21, 2026. Every remaining date is on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

See every BOS to DEN date on the interactive map

Aircraft on the Boston to Denver nonstop

In the schedule table on this page, United Airlines flies the Airbus A321neo family, the Boeing 737 MAX 9, and the Boeing 737-900. JetBlue Airways flies the Airbus A220-300. Delta Air Lines flies the Airbus A321neo family. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

Confirmed upgrade & award space on BOS to DEN departures

2LNR tracks confirmed upgrade and award space on Delta Air Lines, segment by segment and date by date. Open the calendar for Boston to Denver to see which departures have space, the next 14 days free on every product and the full horizon on Pro.

In the 7 days to October 19, 2026, 2LNR checked award space on Boston to Denver departures from October 19 to November 1. JetBlue Airways had space open on 6 of 14 dates checked and Delta Air Lines on 13 of 14.

See real availability

Confirmed upgrade or award seats by date on the BOS to DEN departures 2LNR tracks, checked against live inventory so you know what's open before you book.

Set an alert

Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're tracking.

Plan on the map

See BOS to DEN on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Boston to Denver nonstop

Carriers operating BOS to DEN nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date.

See BOS to DEN on the interactive map →

Frequently asked questions about BOS to DEN

How long is the flight from Boston (BOS) to Denver (DEN)?

Scheduled flight times from Boston (BOS) to Denver (DEN) run from 4h 31m to 4h 51m across the departures in the schedule table on this page. The nonstop covers about 1,750 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.

Which airlines fly nonstop from BOS to DEN?

United Airlines, JetBlue Airways, and Delta Air Lines fly BOS to DEN nonstop. 2LNR tracks confirmed upgrade and award space on Delta Air Lines, and award seats on JetBlue Airways.

How many flights a week are there from BOS to DEN?

About 57 nonstop flights a week run between Boston (BOS) and Denver (DEN) in the current schedule, operated by United Airlines, JetBlue Airways, and Delta Air Lines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.

What time do flights from BOS to DEN depart?

Scheduled BOS to DEN nonstops in the next 7 days with service leave between 07:15 and 20:50, local time at Boston. The schedule table on this page lists every departure by date, with its arrival time and aircraft.

Which flights operate BOS to DEN nonstop?

The schedule table on this page lists 10 flight numbers for BOS to DEN nonstops, including UA 414, UA 647, UA 800, UA 2297, and UA 2348 on United Airlines; B6 393 and B6 993 on JetBlue Airways; and DL 499 on Delta Air Lines. The table lists each departure by date with its times and aircraft.

How do I check upgrade or award availability on BOS to DEN?

Open the BOS to DEN route on the interactive map or the matrix to see confirmed upgrade and award space by date on Delta Air Lines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.