I'm trying to find the title of a vintage movie where stangers are traveling home for Thanksgiving or Christmas. I saw this on television several years ago.

One of the characters was a soldier, another a young woman. Jason Robards may have been one of the travelers.

"The Journey" from 1959. Here's a link:

The Journey (1959) - Overview - MSN Movies

Here's a list of all the movies Jason Robards was in. "The Journey" is the
One that fits your description.

Magnolia (8-Dec-1999)
Beloved (8-Oct-1998)
A Thousand Acres (19-Sep-1997)
Baseball (18-Sep-1994) Himself [VOICE]
Little Big League (29-Jun-1994)
The Paper (18-Mar-1994)
The Enemy Within (22-Feb-1994)
Philadelphia (23-Dec-1993)
Heidi (18-Jul-1993)
The Trial (13-May-1993)
The Adventures of Huck Finn (2-Apr-1993)
Storyville (26-Aug-1992)
The Perfect Tribute (21-Apr-1991)
The Civil War (23-Sep-1990) [VOICE]
Quick Change (13-Jul-1990)
Black Rainbow (Oct-1989)
Parenthood (2-Aug-1989)
Reunion (17-May-1989)
Dream a Little Dream (3-Mar-1989)
The Good Mother (4-Nov-1988)
Inherit the Wind (20-Mar-1988)
Square Dance (20-Feb-1987)
The Long Hot Summer (6-Oct-1985)
The Day After (20-Nov-1983)
Something Wicked This Way Comes (29-Apr-1983)
Max Dugan Returns (25-Mar-1983)
Burden of Dreams (30-May-1982)
The Legend of the Lone Ranger (22-May-1981)
Melvin and Howard (19-Sep-1980)
Raise the Titanic (1-Aug-1980)
Caboblanco (14-Mar-1980)
Hurricane (12-Apr-1979)
Comes a Horseman (25-Oct-1978)
Julia (1977)
All the President's Men (7-Apr-1976)
A Boy and His Dog (Nov-1975)
Pat Garrett and Billy the Kid (23-May-1973)
The House Without a Christmas Tree (3-Dec-1972)
The War Between Men and Women (1-Jun-1972)
Murders in the Rue Morgue (Sep-1971)
Johnny Got His Gun (4-Aug-1971)
Tora! Tora! Tora! (23-Sep-1970)
Julius Caesar (4-Jun-1970)
The Ballad of Cable Hogue (13-May-1970)
The Night They Raided Minsky's (22-Dec-1968)
Once Upon a Time in the West (21-Dec-1968)
Isadora (Dec-1968)
Hour of the Gun (01-Nov-1967)
The St. Valentine's Day Massacre (30-Jun-1967)
Divorce American Style (21-Jun-1967)
Any Wednesday (13-Oct-1966)
A Big Hand for the Little Lady (8-Jun-1966)
A Thousand Clowns (13-Dec-1965)
Long Day's Journey Into Night (9-Oct-1962)
Tender Is the Night (19-Jan-1962)
By Love Possessed (19-Jul-1961)
The Iceman Cometh (14-Nov-1960)
The Journey (19-Feb-1959)