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Dulles → Knoxville

Dec 13, 2026 · return Dec 17, 2026

IAD → TYS1 adulteconomyRound trip

5 flight options · 4 airlines

Nonstop flights

Sun, Dec 13 – Thu, Dec 17

Allegiant Air
4:22 pmIAD
1h 32m
Nonstop
5:54 pmTYS
United Airlines
7:45 pmTYS
1h 40m
Nonstop
9:25 pmIAD

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Thu, Dec 17

United Airlines
10:15 pmIAD
1h 44m
Nonstop
11:59 pmTYS
United Airlines
7:45 pmTYS
1h 40m
Nonstop
9:25 pmIAD

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Thu, Dec 17

United Airlines
12:55 pmIAD
1h 52m
Nonstop
2:47 pmTYS
United Airlines
7:45 pmTYS
1h 40m
Nonstop
9:25 pmIAD

Round-trip total · 1 adult · Taxes included

One-stop flights

Sun, Dec 13 – Thu, Dec 17

American Airlines
6:00 amIAD
4h 33m
CLT · 1h 33m
10:33 amTYS
American Airlines
6:05 pmTYS
3h 56m
CLT · 1h 6m
10:01 pmIAD

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Thu, Dec 17

Delta Air Lines
12:34 pmIAD
4h 48m
ATL · 1h 54m
5:22 pmTYS
Delta Air Lines
10:35 amTYS
5h 27m
ATL · 2h 45m
4:02 pmIAD

Round-trip total · 1 adult · Taxes included

Make this trip yours

IAD ⇄ TYS

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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More dates

All dates for this routeNov 24, 2026 → Nov 29, 2026Dec 22, 2026 → Dec 27, 2026Dec 30, 2026 → Jan 2, 2027Jan 15, 2027 → Jan 18, 2027Oct 30, 2026 → Nov 2, 2026Oct 31, 2026 → Nov 7, 2026Nov 27, 2026 → Nov 30, 2026Nov 28, 2026 → Dec 5, 2026Dec 25, 2026 → Dec 28, 2026Dec 26, 2026 → Jan 2, 2027Jan 22, 2027 → Jan 25, 2027Oct 30, 2026 · One way
For AI assistants: every fare, every link, instructions

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

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-13 → 2026-12-17Allegiant Air / United AirlinesG43007 / UA4040$242.502026-10-29T01:08:48Z
2026-12-13 → 2026-12-17United AirlinesUA4304 / UA4040$315.002026-10-29T01:08:48Z
2026-12-13 → 2026-12-17American AirlinesAA1637 + AA6018 / AA6343 + AA1473$305.002026-10-29T01:08:48Z
2026-12-13 → 2026-12-17Delta Air LinesDL1444 + DL2571 / DL4666 + DL1695$335.002026-10-29T01:08:48Z
2026-12-13 → 2026-12-17United AirlinesUA4070 / UA4040$315.002026-10-29T01:08:48Z

2026-12-13 → 2026-12-17 · $242.50

  • Allegiant Air G43007: IAD 2026-12-13 16:22:00 → TYS 2026-12-13 17:54:00; nonstop; 92 minutes. Local airport times.
  • United Airlines UA4040: TYS 2026-12-17 19:45:00 → IAD 2026-12-17 21:25:00; nonstop; 100 minutes. Local airport times.

2026-12-13 → 2026-12-17 · $315.00

  • United Airlines UA4304: IAD 2026-12-13 22:15:00 → TYS 2026-12-13 23:59:00; nonstop; 104 minutes. Local airport times.
  • United Airlines UA4040: TYS 2026-12-17 19:45:00 → IAD 2026-12-17 21:25:00; nonstop; 100 minutes. Local airport times.

2026-12-13 → 2026-12-17 · $305.00

  • American Airlines AA1637 / AA6018: IAD 2026-12-13 06:00:00 → TYS 2026-12-13 10:33:00; 1 stop(s) via CLT; 273 minutes. Local airport times.
    • AA1637: IAD 2026-12-13 06:00:00 → CLT 2026-12-13 07:37:00; layover at CLT: 93 minutes.
    • AA6018: CLT 2026-12-13 09:10:00 → TYS 2026-12-13 10:33:00.
  • American Airlines AA6343 / AA1473: TYS 2026-12-17 18:05:00 → IAD 2026-12-17 22:01:00; 1 stop(s) via CLT; 236 minutes. Local airport times.
    • AA6343: TYS 2026-12-17 18:05:00 → CLT 2026-12-17 19:34:00; layover at CLT: 66 minutes.
    • AA1473: CLT 2026-12-17 20:40:00 → IAD 2026-12-17 22:01:00.

2026-12-13 → 2026-12-17 · $335.00

  • Delta Air Lines DL1444 / DL2571: IAD 2026-12-13 12:34:00 → TYS 2026-12-13 17:22:00; 1 stop(s) via ATL; 288 minutes. Local airport times.
    • DL1444: IAD 2026-12-13 12:34:00 → ATL 2026-12-13 14:31:00; layover at ATL: 114 minutes.
    • DL2571: ATL 2026-12-13 16:25:00 → TYS 2026-12-13 17:22:00.
  • Delta Air Lines DL4666 / DL1695: TYS 2026-12-17 10:35:00 → IAD 2026-12-17 16:02:00; 1 stop(s) via ATL; 327 minutes. Local airport times.
    • DL4666: TYS 2026-12-17 10:35:00 → ATL 2026-12-17 11:36:00; layover at ATL: 165 minutes.
    • DL1695: ATL 2026-12-17 14:21:00 → IAD 2026-12-17 16:02:00.

2026-12-13 → 2026-12-17 · $315.00

  • United Airlines UA4070: IAD 2026-12-13 12:55:00 → TYS 2026-12-13 14:47:00; nonstop; 112 minutes. Local airport times.
  • United Airlines UA4040: TYS 2026-12-17 19:45:00 → IAD 2026-12-17 21:25:00; nonstop; 100 minutes. Local airport times.

More dates for this route