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Houston → Lisbon

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IAH → LIS1 adulteconomy

18 flight options · 3 airlines

Round-trip flights

Fri, Nov 27 – Fri, Dec 4

Air Canada
3:30 pmIAH
11h 50m
YYZ · 1h 25m
9:20 am+1LIS
Air Canada
10:50 amLIS
13h 51m
YYZ · 1h 30m
6:41 pmIAH

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

KLM Royal Dutch Airlines
3:05 pmIAH
13h 25m
AMS · 1h 15m
10:30 am+1LIS
TAP Air Portugal
11:40 amLIS
14h 43m
EWR · 2h
8:23 pmIAH

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

United Airlines
4:45 pmIAH
11h 20m
IAD · 1h 26m
10:05 am+1LIS
United Airlines
12:20 pmLIS
14h 8m
IAD · 2h 12m
8:28 pmIAH

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

Air Canada
11:55 amIAH
13h
YUL · 2h 30m
6:55 am+1LIS
Air Canada
10:50 amLIS
13h 51m
YYZ · 1h 30m
6:41 pmIAH

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

Air Canada
3:30 pmIAH
11h 50m
YYZ · 1h 25m
9:20 am+1LIS
Air Canada
10:50 amLIS
13h 51m
YYZ · 1h 30m
6:41 pmIAH

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

Air Canada
11:55 amIAH
13h
YUL · 2h 30m
6:55 am+1LIS
Air Canada
10:50 amLIS
13h 51m
YYZ · 1h 30m
6:41 pmIAH

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

KLM Royal Dutch Airlines
3:05 pmIAH
13h 25m
AMS · 1h 15m
10:30 am+1LIS
Air Canada
10:50 amLIS
13h 51m
YYZ · 1h 30m
6:41 pmIAH

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

United Airlines
12:23 pmIAH
13h 47m
EWR · 3h 25m
8:10 am+1LIS
United Airlines
12:20 pmLIS
14h 8m
IAD · 2h 12m
8:28 pmIAH

Round-trip total · 1 adult · Taxes included

Show 4 more flights

Fri, Nov 20 – Mon, Nov 23

United Airlines
12:23 pmIAH
13h 47m
EWR · 3h 25m
8:10 am+1LIS
United Airlines
12:20 pmLIS
14h 8m
IAD · 2h 12m
8:28 pmIAH

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

United Airlines
4:45 pmIAH
11h 20m
IAD · 1h 26m
10:05 am+1LIS
United Airlines
12:20 pmLIS
14h 8m
IAD · 2h 12m
8:28 pmIAH

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

United Airlines
12:00 pmIAH
11h 35m
BOS · 1h 15m
5:35 am+1LIS
United Airlines
12:20 pmLIS
14h 8m
IAD · 2h 12m
8:28 pmIAH

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

United Airlines
12:00 pmIAH
11h 35m
BOS · 1h 15m
5:35 am+1LIS
United Airlines
12:20 pmLIS
14h 8m
IAD · 2h 12m
8:28 pmIAH

Round-trip total · 1 adult · Taxes included

One-way flights

Fri, Nov 20 · One way

Air Canada
3:30 pmIAH
11h 50m
YYZ · 1h 25m
9:20 am+1LIS

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

KLM Royal Dutch Airlines
3:05 pmIAH
13h 25m
AMS · 1h 15m
10:30 am+1LIS

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

United Airlines
4:45 pmIAH
11h 20m
IAD · 1h 26m
10:05 am+1LIS

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

Air Canada
11:55 amIAH
13h
YUL · 2h 30m
6:55 am+1LIS

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

United Airlines
12:23 pmIAH
13h 47m
EWR · 3h 25m
8:10 am+1LIS

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

United Airlines
12:00 pmIAH
11h 35m
BOS · 1h 15m
5:35 am+1LIS

One-way total · 1 adult · Taxes included

Make this trip yours

IAH ⇄ LIS

Economy

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

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Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, Air Canada emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • 24-hour cancellationCancel within 24 hours of booking for a full refund when your departure is at least 7 days away. Closer to departure, the airline’s fare rules apply. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

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. How Axel works · About

More dates

Nov 20, 2026 → Nov 23, 2026Nov 27, 2026 → Dec 4, 2026Nov 20, 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)
2026-11-20 · one wayAir CanadaAC594 + AC810$490.002026-10-29T01:10:49Z
2026-11-20 · one wayKLM Royal Dutch AirlinesKL662 + KL1579$520.002026-10-29T01:10:49Z
2026-11-20 · one wayUnited AirlinesUA2388 + UA942$550.002026-10-29T01:10:49Z
2026-11-27 → 2026-12-04Air CanadaAC594 + AC810 / AC811 + UA394$777.002026-10-29T01:10:49Z
2026-11-20 → 2026-11-23KLM Royal Dutch Airlines / TAP Air PortugalKL662 + KL1579 / TP201 + UA2782$790.502026-10-29T01:10:49Z
2026-11-20 → 2026-11-23United AirlinesUA2388 + UA942 / UA943 + UA1873$892.502026-10-29T01:10:49Z
2026-11-20 · one wayAir CanadaAC580 + AC812$490.002026-10-29T01:10:49Z
2026-11-20 · one wayUnited AirlinesUA1318 + UA64$550.002026-10-29T01:10:49Z
2026-11-20 · one wayUnited AirlinesUA1226 + TP218$550.002026-10-29T01:10:49Z
2026-11-20 → 2026-11-23Air CanadaAC580 + AC812 / AC811 + UA394$777.002026-10-29T01:10:49Z
2026-11-20 → 2026-11-23Air CanadaAC594 + AC810 / AC811 + UA394$777.002026-10-29T01:10:49Z
2026-11-27 → 2026-12-04Air CanadaAC580 + AC812 / AC811 + UA394$777.002026-10-29T01:10:49Z
2026-11-27 → 2026-12-04KLM Royal Dutch Airlines / Air CanadaKL662 + KL1579 / AC811 + UA394$810.002026-10-29T01:10:49Z
2026-11-27 → 2026-12-04United AirlinesUA1318 + UA64 / UA943 + UA1873$892.502026-10-29T01:10:49Z
2026-11-20 → 2026-11-23United AirlinesUA1318 + UA64 / UA943 + UA1873$892.502026-10-29T01:10:49Z
2026-11-27 → 2026-12-04United AirlinesUA2388 + UA942 / UA943 + UA1873$892.502026-10-29T01:10:49Z
2026-11-20 → 2026-11-23United AirlinesUA1226 + TP218 / UA943 + UA1873$892.502026-10-29T01:10:49Z
2026-11-27 → 2026-12-04United AirlinesUA1226 + TP218 / UA943 + UA1873$892.502026-10-29T01:10:49Z

2026-11-20 · one way · $490.00

  • Air Canada AC594 / AC810: IAH 2026-11-20 15:30:00 → LIS 2026-11-21 09:20:00; 1 stop(s) via YYZ; 710 minutes. Local airport times.
    • AC594: IAH 2026-11-20 15:30:00 → YYZ 2026-11-20 19:45:00; layover at YYZ: 85 minutes.
    • AC810: YYZ 2026-11-20 21:10:00 → LIS 2026-11-21 09:20:00.

2026-11-20 · one way · $520.00

  • KLM Royal Dutch Airlines KL662 / KL1579: IAH 2026-11-20 15:05:00 → LIS 2026-11-21 10:30:00; 1 stop(s) via AMS; 805 minutes. Local airport times.
    • KL662: IAH 2026-11-20 15:05:00 → AMS 2026-11-21 07:15:00; layover at AMS: 75 minutes.
    • KL1579: AMS 2026-11-21 08:30:00 → LIS 2026-11-21 10:30:00.

2026-11-20 · one way · $550.00

  • United Airlines UA2388 / UA942: IAH 2026-11-20 16:45:00 → LIS 2026-11-21 10:05:00; 1 stop(s) via IAD; 680 minutes. Local airport times.
    • UA2388: IAH 2026-11-20 16:45:00 → IAD 2026-11-20 20:49:00; layover at IAD: 86 minutes.
    • UA942: IAD 2026-11-20 22:15:00 → LIS 2026-11-21 10:05:00.

2026-11-27 → 2026-12-04 · $777.00

  • Air Canada AC594 / AC810: IAH 2026-11-27 15:30:00 → LIS 2026-11-28 09:20:00; 1 stop(s) via YYZ; 710 minutes. Local airport times.
    • AC594: IAH 2026-11-27 15:30:00 → YYZ 2026-11-27 19:45:00; layover at YYZ: 85 minutes.
    • AC810: YYZ 2026-11-27 21:10:00 → LIS 2026-11-28 09:20:00.
  • Air Canada AC811 / UA394: LIS 2026-12-04 10:50:00 → IAH 2026-12-04 18:41:00; 1 stop(s) via YYZ; 831 minutes. Local airport times.
    • AC811: LIS 2026-12-04 10:50:00 → YYZ 2026-12-04 14:15:00; layover at YYZ: 90 minutes.
    • UA394: YYZ 2026-12-04 15:45:00 → IAH 2026-12-04 18:41:00.

2026-11-20 → 2026-11-23 · $790.50

  • KLM Royal Dutch Airlines KL662 / KL1579: IAH 2026-11-20 15:05:00 → LIS 2026-11-21 10:30:00; 1 stop(s) via AMS; 805 minutes. Local airport times.
    • KL662: IAH 2026-11-20 15:05:00 → AMS 2026-11-21 07:15:00; layover at AMS: 75 minutes.
    • KL1579: AMS 2026-11-21 08:30:00 → LIS 2026-11-21 10:30:00.
  • TAP Air Portugal TP201 / UA2782: LIS 2026-11-23 11:40:00 → IAH 2026-11-23 20:23:00; 1 stop(s) via EWR; 883 minutes. Local airport times.
    • TP201: LIS 2026-11-23 11:40:00 → EWR 2026-11-23 15:20:00; layover at EWR: 120 minutes.
    • UA2782: EWR 2026-11-23 17:20:00 → IAH 2026-11-23 20:23:00.

2026-11-20 → 2026-11-23 · $892.50

  • United Airlines UA2388 / UA942: IAH 2026-11-20 16:45:00 → LIS 2026-11-21 10:05:00; 1 stop(s) via IAD; 680 minutes. Local airport times.
    • UA2388: IAH 2026-11-20 16:45:00 → IAD 2026-11-20 20:49:00; layover at IAD: 86 minutes.
    • UA942: IAD 2026-11-20 22:15:00 → LIS 2026-11-21 10:05:00.
  • United Airlines UA943 / UA1873: LIS 2026-11-23 12:20:00 → IAH 2026-11-23 20:28:00; 1 stop(s) via IAD; 848 minutes. Local airport times.
    • UA943: LIS 2026-11-23 12:20:00 → IAD 2026-11-23 15:40:00; layover at IAD: 132 minutes.
    • UA1873: IAD 2026-11-23 17:52:00 → IAH 2026-11-23 20:28:00.

2026-11-20 · one way · $490.00

  • Air Canada AC580 / AC812: IAH 2026-11-20 11:55:00 → LIS 2026-11-21 06:55:00; 1 stop(s) via YUL; 780 minutes. Local airport times.
    • AC580: IAH 2026-11-20 11:55:00 → YUL 2026-11-20 16:45:00; layover at YUL: 150 minutes.
    • AC812: YUL 2026-11-20 19:15:00 → LIS 2026-11-21 06:55:00.

2026-11-20 · one way · $550.00

  • United Airlines UA1318 / UA64: IAH 2026-11-20 12:23:00 → LIS 2026-11-21 08:10:00; 1 stop(s) via EWR; 827 minutes. Local airport times.
    • UA1318: IAH 2026-11-20 12:23:00 → EWR 2026-11-20 17:00:00; layover at EWR: 205 minutes.
    • UA64: EWR 2026-11-20 20:25:00 → LIS 2026-11-21 08:10:00.

2026-11-20 · one way · $550.00

  • United Airlines UA1226 / TP218: IAH 2026-11-20 12:00:00 → LIS 2026-11-21 05:35:00; 1 stop(s) via BOS; 695 minutes. Local airport times.
    • UA1226: IAH 2026-11-20 12:00:00 → BOS 2026-11-20 16:45:00; layover at BOS: 75 minutes.
    • TP218: BOS 2026-11-20 18:00:00 → LIS 2026-11-21 05:35:00.

2026-11-20 → 2026-11-23 · $777.00

  • Air Canada AC580 / AC812: IAH 2026-11-20 11:55:00 → LIS 2026-11-21 06:55:00; 1 stop(s) via YUL; 780 minutes. Local airport times.
    • AC580: IAH 2026-11-20 11:55:00 → YUL 2026-11-20 16:45:00; layover at YUL: 150 minutes.
    • AC812: YUL 2026-11-20 19:15:00 → LIS 2026-11-21 06:55:00.
  • Air Canada AC811 / UA394: LIS 2026-11-23 10:50:00 → IAH 2026-11-23 18:41:00; 1 stop(s) via YYZ; 831 minutes. Local airport times.
    • AC811: LIS 2026-11-23 10:50:00 → YYZ 2026-11-23 14:15:00; layover at YYZ: 90 minutes.
    • UA394: YYZ 2026-11-23 15:45:00 → IAH 2026-11-23 18:41:00.

2026-11-20 → 2026-11-23 · $777.00

  • Air Canada AC594 / AC810: IAH 2026-11-20 15:30:00 → LIS 2026-11-21 09:20:00; 1 stop(s) via YYZ; 710 minutes. Local airport times.
    • AC594: IAH 2026-11-20 15:30:00 → YYZ 2026-11-20 19:45:00; layover at YYZ: 85 minutes.
    • AC810: YYZ 2026-11-20 21:10:00 → LIS 2026-11-21 09:20:00.
  • Air Canada AC811 / UA394: LIS 2026-11-23 10:50:00 → IAH 2026-11-23 18:41:00; 1 stop(s) via YYZ; 831 minutes. Local airport times.
    • AC811: LIS 2026-11-23 10:50:00 → YYZ 2026-11-23 14:15:00; layover at YYZ: 90 minutes.
    • UA394: YYZ 2026-11-23 15:45:00 → IAH 2026-11-23 18:41:00.

2026-11-27 → 2026-12-04 · $777.00

  • Air Canada AC580 / AC812: IAH 2026-11-27 11:55:00 → LIS 2026-11-28 06:55:00; 1 stop(s) via YUL; 780 minutes. Local airport times.
    • AC580: IAH 2026-11-27 11:55:00 → YUL 2026-11-27 16:45:00; layover at YUL: 150 minutes.
    • AC812: YUL 2026-11-27 19:15:00 → LIS 2026-11-28 06:55:00.
  • Air Canada AC811 / UA394: LIS 2026-12-04 10:50:00 → IAH 2026-12-04 18:41:00; 1 stop(s) via YYZ; 831 minutes. Local airport times.
    • AC811: LIS 2026-12-04 10:50:00 → YYZ 2026-12-04 14:15:00; layover at YYZ: 90 minutes.
    • UA394: YYZ 2026-12-04 15:45:00 → IAH 2026-12-04 18:41:00.

2026-11-27 → 2026-12-04 · $810.00

  • KLM Royal Dutch Airlines KL662 / KL1579: IAH 2026-11-27 15:05:00 → LIS 2026-11-28 10:30:00; 1 stop(s) via AMS; 805 minutes. Local airport times.
    • KL662: IAH 2026-11-27 15:05:00 → AMS 2026-11-28 07:15:00; layover at AMS: 75 minutes.
    • KL1579: AMS 2026-11-28 08:30:00 → LIS 2026-11-28 10:30:00.
  • Air Canada AC811 / UA394: LIS 2026-12-04 10:50:00 → IAH 2026-12-04 18:41:00; 1 stop(s) via YYZ; 831 minutes. Local airport times.
    • AC811: LIS 2026-12-04 10:50:00 → YYZ 2026-12-04 14:15:00; layover at YYZ: 90 minutes.
    • UA394: YYZ 2026-12-04 15:45:00 → IAH 2026-12-04 18:41:00.

2026-11-27 → 2026-12-04 · $892.50

  • United Airlines UA1318 / UA64: IAH 2026-11-27 12:23:00 → LIS 2026-11-28 08:10:00; 1 stop(s) via EWR; 827 minutes. Local airport times.
    • UA1318: IAH 2026-11-27 12:23:00 → EWR 2026-11-27 17:00:00; layover at EWR: 205 minutes.
    • UA64: EWR 2026-11-27 20:25:00 → LIS 2026-11-28 08:10:00.
  • United Airlines UA943 / UA1873: LIS 2026-12-04 12:20:00 → IAH 2026-12-04 20:28:00; 1 stop(s) via IAD; 848 minutes. Local airport times.
    • UA943: LIS 2026-12-04 12:20:00 → IAD 2026-12-04 15:40:00; layover at IAD: 132 minutes.
    • UA1873: IAD 2026-12-04 17:52:00 → IAH 2026-12-04 20:28:00.

2026-11-20 → 2026-11-23 · $892.50

  • United Airlines UA1318 / UA64: IAH 2026-11-20 12:23:00 → LIS 2026-11-21 08:10:00; 1 stop(s) via EWR; 827 minutes. Local airport times.
    • UA1318: IAH 2026-11-20 12:23:00 → EWR 2026-11-20 17:00:00; layover at EWR: 205 minutes.
    • UA64: EWR 2026-11-20 20:25:00 → LIS 2026-11-21 08:10:00.
  • United Airlines UA943 / UA1873: LIS 2026-11-23 12:20:00 → IAH 2026-11-23 20:28:00; 1 stop(s) via IAD; 848 minutes. Local airport times.
    • UA943: LIS 2026-11-23 12:20:00 → IAD 2026-11-23 15:40:00; layover at IAD: 132 minutes.
    • UA1873: IAD 2026-11-23 17:52:00 → IAH 2026-11-23 20:28:00.

2026-11-27 → 2026-12-04 · $892.50

  • United Airlines UA2388 / UA942: IAH 2026-11-27 16:45:00 → LIS 2026-11-28 10:05:00; 1 stop(s) via IAD; 680 minutes. Local airport times.
    • UA2388: IAH 2026-11-27 16:45:00 → IAD 2026-11-27 20:49:00; layover at IAD: 86 minutes.
    • UA942: IAD 2026-11-27 22:15:00 → LIS 2026-11-28 10:05:00.
  • United Airlines UA943 / UA1873: LIS 2026-12-04 12:20:00 → IAH 2026-12-04 20:28:00; 1 stop(s) via IAD; 848 minutes. Local airport times.
    • UA943: LIS 2026-12-04 12:20:00 → IAD 2026-12-04 15:40:00; layover at IAD: 132 minutes.
    • UA1873: IAD 2026-12-04 17:52:00 → IAH 2026-12-04 20:28:00.

2026-11-20 → 2026-11-23 · $892.50

  • United Airlines UA1226 / TP218: IAH 2026-11-20 12:00:00 → LIS 2026-11-21 05:35:00; 1 stop(s) via BOS; 695 minutes. Local airport times.
    • UA1226: IAH 2026-11-20 12:00:00 → BOS 2026-11-20 16:45:00; layover at BOS: 75 minutes.
    • TP218: BOS 2026-11-20 18:00:00 → LIS 2026-11-21 05:35:00.
  • United Airlines UA943 / UA1873: LIS 2026-11-23 12:20:00 → IAH 2026-11-23 20:28:00; 1 stop(s) via IAD; 848 minutes. Local airport times.
    • UA943: LIS 2026-11-23 12:20:00 → IAD 2026-11-23 15:40:00; layover at IAD: 132 minutes.
    • UA1873: IAD 2026-11-23 17:52:00 → IAH 2026-11-23 20:28:00.

2026-11-27 → 2026-12-04 · $892.50

  • United Airlines UA1226 / TP218: IAH 2026-11-27 12:00:00 → LIS 2026-11-28 05:35:00; 1 stop(s) via BOS; 695 minutes. Local airport times.
    • UA1226: IAH 2026-11-27 12:00:00 → BOS 2026-11-27 16:45:00; layover at BOS: 75 minutes.
    • TP218: BOS 2026-11-27 18:00:00 → LIS 2026-11-28 05:35:00.
  • United Airlines UA943 / UA1873: LIS 2026-12-04 12:20:00 → IAH 2026-12-04 20:28:00; 1 stop(s) via IAD; 848 minutes. Local airport times.
    • UA943: LIS 2026-12-04 12:20:00 → IAD 2026-12-04 15:40:00; layover at IAD: 132 minutes.
    • UA1873: IAD 2026-12-04 17:52:00 → IAH 2026-12-04 20:28:00.

More dates for this route