Best Flights starting from $497
from$497economy
Denver (Any)
Thu, Sep 17
One-way
Lisbon (LIS)
—
from$518economy
Denver (Any)
Wed, Sep 16
One-way
Lisbon (LIS)
—
from$572economy
Denver (Any)
Fri, Sep 11
One-way
Lisbon (LIS)
—
from$589economy
Denver (Any)
Sat, Sep 12
One-way
Lisbon (LIS)
—
from$589economy
Denver (Any)
Sun, Sep 13
One-way
Lisbon (LIS)
—
from$589economy
Denver (Any)
Tue, Sep 15
One-way
Lisbon (LIS)
—
from$600economy
Denver (Any)
Mon, Sep 14
One-way
Lisbon (LIS)
—
Fields updated — click View Prices to search ↑
Other Destinations
Denver (Any) to Miami (MIA) in September from $149
From $149
Denver (Any) to Burbank (BUR) in September from $165
From $165
Denver (Any) to Anchorage (Any) in September from $211
From $211
Denver (Any) to Portland (PDX) in September from $247
From $247
Denver (Any) to Fort Myers (RSW) in September from $325
From $325
Denver (Any) to Barcelona (BCN) in September from $384
From $384
Flights from Other Cities
Tel Aviv (TLV) to Lisbon (LIS) in September from $342
From $342
Newark (EWR) to Lisbon (LIS) in September from $533
From $533
Toronto (YYZ) to Lisbon (LIS) in September from $552
From $552
Charlotte (CLT) to Lisbon (LIS) in September from $577
From $577
Los Angeles (LAX) to Lisbon (LIS) in September from $583
From $583
Boston (BOS) to Lisbon (LIS) in September from $608
From $608